window.methodDraw = function () {
  var svgCanvas;
  var Editor = {};
  var is_ready = false;
  var getPathing;
  let basePath = "";
  let vscode = undefined;
  let opened = true;
  if (window.location.href.includes("vscode-webview")) {
    /**@type{string} */
    let s = document.head.querySelector("link[rel='stylesheet']").href;
    vscode = acquireVsCodeApi();
    basePath = s.slice(0, s.lastIndexOf("/") + 1);
    window.alert = function (msg) {
      vscode.postMessage({ type: "message", msg });
    }
    setTimeout(() => {
      vscode.postMessage({ type: "ready" });
    }, 1);
  }
  var curConfig = {
    canvas_expansion: 1,
    dimensions: [800, 600],
    initFill: { color: 'fff', opacity: 1 },
    initStroke: { width: 1, color: '000', opacity: 1 },
    initOpacity: 1,
    imgPath: basePath + 'images/',
    extPath: basePath + 'extensions/',
    jGraduatePath: basePath + 'images/',
    extensions: [],
    initTool: 'select',
    wireframe: false,
    colorPickerCSS: false,
    gridSnapping: false,
    gridColor: "#000",
    baseUnit: 'px',
    snappingStep: 10,
    showRulers: (svgedit.browser.isTouch()) ? false : true,
    show_outside_canvas: false,
    no_save_warning: true,
    initFont: 'Helvetica, Arial, sans-serif',
    basePath: basePath
  };

  var customHandlers = {};
  Editor.curConfig = curConfig;
  Editor.tool_scale = 1;

  Editor.setConfig = function (opts) {
    $.extend(true, curConfig, opts);
    if (opts.extensions) {
      curConfig.extensions = opts.extensions;
    }
  }

  Editor.init = function () {

    $("body").toggleClass("touch", svgedit.browser.isTouch());
    $("#canvas_width").val(curConfig.dimensions[0]);
    $("#canvas_height").val(curConfig.dimensions[1]);


    Editor.canvas = svgCanvas = new $.SvgCanvas(document.getElementById("svgcanvas"), curConfig);

    Editor.paintBox = { fill: null, stroke: null, canvas: null };
    var isMac = (navigator.platform.indexOf("Mac") >= 0),
      isWebkit = (navigator.userAgent.indexOf("AppleWebKit") >= 0),
      modKey = (isMac ? "meta+" : "ctrl+"), // ⌘
      path = svgCanvas.pathActions,
      undoMgr = svgCanvas.undoMgr,
      Utils = svgedit.utilities,
      default_img_url = curConfig.imgPath + "placeholder.svg",
      workarea = $("#workarea"),
      canv_menu = $("#cmenu_canvas"),
      exportWindow = null,
      tool_scale = 1,
      ui_context = 'toolbars',
      orig_source = '';

    // This puts the correct shortcuts in the menus
    if (!isMac) {
      $('.shortcut').each(function () {
        var text = $(this).text();
        $(this).text(text.split("⌘").join("Ctrl+"))
      });
    }

    var setSelectMode = function () {
      var curr = $('.tool_button.current');
      if (curr.length && curr[0].id !== 'tool_select') {
        curr.removeClass('current').addClass('tool_button');
        $('#tool_select').addClass('current');
      }
      svgCanvas.setMode('select');
    };

    var togglePathEditMode = function (editmode, elems) {
      if (editmode) {
        // Change select icon
        $('.context_panel').hide();
        $('#path_node_panel').show();
        $('.tool_button.current').removeClass('.current');
        $('#tool_select').addClass('.current');
        multiselected = false;
      } else {
        if (elems[0]) {
          var selector = svgCanvas.selectorManager.requestSelector(elems[0])
          selector.reset(elems[0]);
          selector.selectorRect.setAttribute('display', 'inline');
        }

      }
    }

    // used to make the flyouts stay on the screen longer the very first time
    var flyoutspeed = 1250;
    var textBeingEntered = false;
    var selectedElement = null;
    var multiselected = false;
    var editingsource = false;
    var docprops = false;
    var preferences = false;
    var cur_context = '';

    var saveHandler = function (window, svg) {

    };

    var exportHandler = function (window, data) {
      var issues = data.issues;

      if (!$('#export_canvas').length) {
        $('<canvas>', { id: 'export_canvas' }).hide().appendTo('body');
      }
      var c = $('#export_canvas')[0];

      c.width = svgCanvas.contentW;
      c.height = svgCanvas.contentH;
      canvg(c, data.svg, {
        renderCallback: function () {
          var datauri = c.toDataURL('image/png');
          if (!datauri) return false;
          var filename = "Method Draw Image";
          var type = 'image/png';
          var file = svgedit.utilities.dataURItoBlob(datauri, type);
          if (window.navigator.msSaveOrOpenBlob) // IE10+
            window.navigator.msSaveOrOpenBlob(file, filename);
          else { // Others
            var a = document.createElement("a"),
              url = URL.createObjectURL(file);
            a.href = url;
            a.download = filename;
            document.body.appendChild(a);
            a.click();
            setTimeout(function () {
              document.body.removeChild(a);
              window.URL.revokeObjectURL(url);
            }, 0);
          }
        }
      });
    };
    // called when we've selected a different element
    var getPath = function (elem) {
      let d = '';
      let num = 1.81;
      let joinSegs = function (segs) {
        $.each(segs, function (j, seg) {
          var l = seg[0], pts = seg[1];
          d += l;
          for (var i = 0; i < pts.length; i += 2) {
            d += (pts[i] + ',' + pts[i + 1]) + ' ';
          }
        });
      }
      switch (elem.tagName) {
        case 'ellipse':
        case 'circle':
          var a = $(elem).attr(['rx', 'ry', 'cx', 'cy']);
          var cx = a.cx, cy = a.cy, rx = a.rx, ry = a.ry;
          if (elem.tagName == 'circle') {
            rx = ry = $(elem).attr('r');
          }

          joinSegs([
            ['M', [(cx - rx), (cy)]],
            ['C', [(cx - rx), (cy - ry / num), (cx - rx / num), (cy - ry), (cx), (cy - ry)]],
            ['C', [(cx + rx / num), (cy - ry), (cx + rx), (cy - ry / num), (cx + rx), (cy)]],
            ['C', [(cx + rx), (cy + ry / num), (cx + rx / num), (cy + ry), (cx), (cy + ry)]],
            ['C', [(cx - rx / num), (cy + ry), (cx - rx), (cy + ry / num), (cx - rx), (cy)]],
            ['Z', []]
          ]);
          break;
        case 'path':
          d = elem.getAttribute('d');
          break;
        case 'line':
          var a = $(elem).attr(["x1", "y1", "x2", "y2"]);
          d = "M" + a.x1 + "," + a.y1 + "L" + a.x2 + "," + a.y2;
          break;
        case 'polyline':
        case 'polygon':
          d = "M" + elem.getAttribute('points');
          break;
        case 'rect':
          var r = $(elem).attr(['rx', 'ry']);
          var rx = r.rx, ry = r.ry;
          var b = elem.getBBox();
          var x = b.x, y = b.y, w = b.width, h = b.height;
          num = 4 - num; // Why? Because!
          if (!rx && !ry) {
            // Regular rect
            joinSegs([
              ['M', [x, y]],
              ['L', [x + w, y]],
              ['L', [x + w, y + h]],
              ['L', [x, y + h]],
              ['L', [x, y]],
              ['Z', []]
            ]);
          } else {
            if (!ry) ry = rx
            joinSegs([
              ['M', [x, y + ry]],
              ['C', [x, y + ry / num, x + rx / num, y, x + rx, y]],
              ['L', [x + w - rx, y]],
              ['C', [x + w - rx / num, y, x + w, y + ry / num, x + w, y + ry]],
              ['L', [x + w, y + h - ry]],
              ['C', [x + w, y + h - ry / num, x + w - rx / num, y + h, x + w - rx, y + h]],
              ['L', [x + rx, y + h]],
              ['C', [x + rx / num, y + h, x, y + h - ry / num, x, y + h - ry]],
              ['L', [x, y + ry]],
              ['Z', []]
            ]);
          }
          break;
        default:
          path.parentNode.removeChild(path);
          break;
      }
      return d;
    }
    var selectedChanged = function (window, elems) {

      var mode = svgCanvas.getMode();
      if (mode === "select") setSelectMode();
      if (getPathing) {
        if (elems.length == 1 && elems[0]) {
          getPathing = false;
          let path = `path("${getPath(elems[0])}")`;
          $("#offsetPath").prop('path', path)
          $(elems[0]).one("mouseup", function () {
            svgCanvas.clearSelection();
            svgCanvas.addToSelection([$("#animation_panel").prop("svgEl")]);
            $("#offsetPath").prop("checked", false);
            setTimeout(() => {
              $("#animator_editor").show(100);
            }, 100);
          })
        }
        return;
      }
      if (mode === "pathedit") return updateContextPanel();
      // if elems[1] is present, then we have more than one element
      selectedElement = (elems.length == 1 || elems[1] == null ? elems[0] : null);
      elems = elems.filter(Boolean)
      multiselected = (elems.length >= 2) ? elems : false;
      if (svgCanvas.elementsAreSame(multiselected)) selectedElement = multiselected[0]
      if (selectedElement != null) {
        $('#multiselected_panel').hide()
        updateToolbar();
        if (multiselected.length) {//multiselected elements are the same
          $('#tools_top').addClass('multiselected')
        }
      }
      else if (multiselected.length) {
        $('.context_panel').hide()
        $('#tools_top').removeClass('multiselected')
        $('#multiselected_panel').show()
      }
      else {
        $('.context_panel').hide()
        $('#canvas_panel').show()
        $('#tools_top').removeClass('multiselected')
        $("#animation_panel").hide();
      }
      svgCanvas.runExtensions("selectedChanged", {
        elems: elems,
        selectedElement: selectedElement,
        multiselected: multiselected
      });
    };

    // Call when part of element is in process of changing, generally
    // on mousemove actions like rotate, move, etc.
    var elementTransition = function (window, elems) {
      var mode = svgCanvas.getMode();
      var elem = elems[0];

      if (!elem) return;

      multiselected = (elems.length >= 2 && elems[1] != null) ? elems : null;
      // Only updating fields for single elements for now
      if (!multiselected) {
        switch (mode) {
          case "rotate":
            var ang = svgCanvas.getRotationAngle(elem);
            $('#angle').val(Math.round(ang));
            rotateCursor(ang);
            $('#tool_reorient').toggleClass('disabled', ang == 0);
            break;
        }
      }
      svgCanvas.runExtensions("elementTransition", {
        elems: elems
      });
    };

    // called when any element has changed
    var elementChanged = function (window, elems) {
      if (vscode && opened) {
        setTimeout(() => {
          let content = svgCanvas.getSvgString({ images: undefined, round_digits: 6, apply: true });
          let currentContext = current_context ? current_context.id : "";
          vscode.postMessage({ type: 'changed', content, currentContext });
        }, 100);
      }
      var mode = svgCanvas.getMode();
      if (mode === "select") {
        setSelectMode();
      }

      for (var i = 0; i < elems.length; ++i) {
        var elem = elems[i];

        // if the element changed was the svg, then it could be a resolution change
        if (elem && elem.tagName === "svg") {
          //populateLayers();
          updateCanvas();
        }
        // Update selectedElement if element is no longer part of the image.
        // This occurs for the text elements in Firefox
        else if (elem && selectedElement && selectedElement.parentNode == null) {
          //            || elem && elem.tagName == "path" && !multiselected) { // This was added in r1430, but not sure why
          selectedElement = elem;
        }
      }

      // we update the contextual panel with potentially new
      // positional/sizing information (we DON'T want to update the
      // toolbar here as that creates an infinite loop)
      // also this updates the history buttons

      // we tell it to skip focusing the text control if the
      // text element was previously in focus
      updateContextPanel();

      // In the event a gradient was flipped:
      if (selectedElement && mode === "select") {
        Editor.paintBox.fill.update();
        Editor.paintBox.stroke.update();
      }

      svgCanvas.runExtensions("elementChanged", {
        elems: elems
      });
    };

    var zoomChanged = function (window, bbox, autoCenter) {
      var scrbar = 15,
        res = svgCanvas.getResolution(),
        w_area = workarea,
        canvas_pos = $('#svgcanvas').position();
      var z_info = svgCanvas.setBBoxZoom(bbox, w_area.width() - scrbar, w_area.height() - scrbar);
      if (!z_info) return;
      var zoomlevel = z_info.zoom,
        bb = z_info.bbox;

      if (zoomlevel < .001) {
        changeZoom({ value: .1 });
        return;
      }
      if (typeof animatedZoom != 'undefined') window.cancelAnimationFrame(animatedZoom)
      // zoom duration 500ms
      var start = Date.now();
      var duration = 500;
      var diff = (zoomlevel) - (res.zoom)
      var zoom = $('#zoom')[0]
      var current_zoom = res.zoom
      var animateZoom = function (timestamp) {
        var progress = Date.now() - start
        var tick = progress / duration
        tick = (Math.pow((tick - 1), 3) + 1);
        svgCanvas.setZoom(current_zoom + (diff * tick));
        updateCanvas();
        if (tick < 1 && tick > -.90) {
          window.animatedZoom = requestAnimationFrame(animateZoom)
        }
        else {
          $("#zoom").val(parseInt(zoomlevel * 100))
          $("option", "#zoom_select").removeAttr("selected")
          $("option[value=" + parseInt(zoomlevel * 100) + "]", "#zoom_select").attr("selected", "selected")
        }
      }
      animateZoom()


      if (svgCanvas.getMode() == 'zoom' && bb.width) {
        // Go to select if a zoom box was drawn
        setSelectMode();
      }

      zoomDone();
    }

    $('#cur_context_panel').delegate('a', 'click', function () {
      var link = $(this);
      if (link.attr('data-root')) {
        svgCanvas.leaveContext();
      } else {
        svgCanvas.setContext(link.text());
      }
      svgCanvas.clearSelection();
      return false;
    });
    var current_context = null;
    var contextChanged = function (win, context) {
      current_context = context;
      var link_str = '';
      if (context) {
        var str = '';
        link_str = '<a href="#" data-root="y">' + svgCanvas.getCurrentDrawing().getCurrentLayerName() + '</a>';

        $(context).parentsUntil('#svgcontent > g').addBack().each(function () {
          if (this.id) {
            str += ' > ' + this.id;
            if (this !== context) {
              link_str += ' > <a href="#">' + this.id + '</a>';
            } else {
              link_str += ' > ' + this.id;
            }
          }
        });

        cur_context = str;
      } else {
        cur_context = null;
      }
      $('#cur_context_panel').toggle(!!context).html(link_str);

    }

    var extAdded = function (window, ext) {
      if (ext.callback) ext.callback();
    }

    // Makes sure the current selected paint is available to work with
    var prepPaints = function () {
      Editor.paintBox.fill.prep();
      Editor.paintBox.stroke.prep();
    }

    var getPaint = function (color, opac, type) {
      // update the editor's fill paint
      var opts = null;
      if (color.indexOf("url(#") === 0) {
        var refElem = svgCanvas.getRefElem(color);
        if (refElem) {
          refElem = refElem.cloneNode(true);
        } else {
          refElem = $("#" + type + "_color defs *")[0];
        }

        opts = { alpha: opac };
        opts[refElem.tagName] = refElem;
      }
      else if (color.indexOf("#") === 0) {
        opts = {
          alpha: opac,
          solidColor: color.substr(1)
        };
      }
      else {
        opts = {
          alpha: opac,
          solidColor: 'none'
        };
      }
      return new $.jGraduate.Paint(opts);
    };

    // set the canvas properties at init
    var res = svgCanvas.getResolution();
    if (curConfig.baseUnit !== "px") {
      res.w = svgedit.units.convertUnit(res.w) + curConfig.baseUnit;
      res.h = svgedit.units.convertUnit(res.h) + curConfig.baseUnit;
    }

    var createBackground = function (fill) {
      svgCanvas.createLayer("background")
      cur_shape = svgCanvas.addSvgElementFromJson({
        "element": "rect",
        "attr": {
          "x": -1,
          "y": -1,
          "width": res.w + 2,
          "height": res.h + 2,
          "stroke": "none",
          "id": "canvas_background",
          "opacity": 1,
          "fill": fill || "#fff",
          "style": "pointer-events:none"
        }
      });
      svgCanvas.setCurrentLayer("Layer 1")
      svgCanvas.setCurrentLayerPosition("1")
    }

    // create a new layer background if it doesn't exist
    if (!document.getElementById('canvas_background')) createBackground();
    var fill = document.getElementById('canvas_background').getAttribute("fill");

    // updates the toolbar (colors, opacity, etc) based on the selected element
    // This function also updates the opacity and id elements that are in the context panel
    var updateToolbar = function () {
      if (selectedElement === null) {
        updateContextPanel();
        return;
      }

      switch (selectedElement.tagName) {
        case 'use':
          $(".context_panel").hide();
          $("#use_panel").show();
          break;
        case 'image':
          $(".context_panel").hide();
          $("#image_panel").show();
          break;
        case 'foreignObject':
          $(".context_panel").hide();
          break;
        case 'g':
        case 'a':
          // Look for common styles
          var gWidth = null;

          var childs = selectedElement.getElementsByTagName('*');
          for (var i = 0, len = childs.length; i < len; i++) {
            var swidth = childs[i].getAttribute("stroke-width");
            if (i === 0) {
              gWidth = swidth;
            } else if (gWidth !== swidth) {
              gWidth = null;
            }
          }

          $('#stroke_width').val(gWidth === null ? "0" : gWidth);
          updateContextPanel();
          break;
        default:
          //removed because multiselect shouldnt set color
          //Editor.paintBox.fill.update(false);
          //Editor.paintBox.stroke.update(false);
          let strokeWidth = selectedElement.getAttribute("stroke-width");
          $('#stroke_width').val(strokeWidth === null || strokeWidth === 'null' ? 1 : strokeWidth);

          var dash = selectedElement.getAttribute("stroke-dasharray") || "none"
          $('option', '#stroke_style').removeAttr('selected');
          $('#_stroke_style').val(dash);
          let sel = $('#stroke_style option[value="' + dash + '"]');
          if (sel.length) {
            $('#stroke_style option[value="' + dash + '"]').attr("selected", "selected");
            $("#stroke_style_label").html($('#stroke_style option[value="' + dash + '"]').text())
          } else {
            $("#stroke_style_label").html("");
          }
          $.fn.dragInput.updateCursor($('#stroke_width')[0]);
          $.fn.dragInput.updateCursor($('#blur')[0]);
      }



      // All elements including image and group have opacity

      var opac_perc = ((selectedElement.getAttribute("opacity") || 1.0) * 100);
      $('#group_opacity').val(opac_perc);
      $.fn.dragInput.updateCursor($('#group_opacity')[0])



      let transform = selectedElement.getAttribute('plc_transform');
      let tsx = '', tsy = '', scx = '', scy = '', ro = '';
      if (transform) {
        //@type {RegExpExecArray}
        let tsmc = transform.match(/translate\((.*?),(.*?)\) /);
        let scmc = transform.match(/scale\((.*?),(.*?)\) /);
        let rotmc = transform.match(/rotate\((.*?),(.*?),(.*?)\) /);
        if (tsmc) {
          tsx = tsmc[1].slice(0, 2) === '@(' ? atob(tsmc[1].slice(2, -2)) : '';
          tsy = tsmc[2].slice(0, 2) === '@(' ? atob(tsmc[2].slice(2, -2)) : '';
        }
        if (scmc) {
          scx = scmc[1].slice(0, 2) === '@(' ? atob(scmc[1].slice(2, -2)) : '';
          scy = scmc[2].slice(0, 2) === '@(' ? atob(scmc[2].slice(2, -2)) : '';
        }
        if (rotmc) {
          ro = rotmc[1].slice(0, 2) === '@(' ? atob(rotmc[1].slice(2, -2)) : '';
        }
      }
      $('#plc_translateX').val(tsx);
      $('#plc_translateY').val(tsy);
      $('#plc_scaleX').val(scx);
      $('#plc_scaleY').val(scy);
      $('#plc_rotate').val(ro);

      $("textarea[data-attr^='plc_']").each((_, e) => {
        let filter = ['plc_width', 'plc_height', 'plc_fill', 'plc_stroke', 'plc_fill-opacity', 'plc_stroke-opacity']
        let attr = $(e).attr('data-attr');
        if (!filter.includes(attr)) return;
        let val = selectedElement.getAttribute(attr);
        if (val) {
          dval = atob(val.slice(2, -2));
          e.value = dval;
        } else {
          e.value = "";
        }
      })

      updateAnimations(selectedElement);
      updateContextPanel();
    };
    var updateAnimations = function (el) {
      $("#animation_panel").prop("svgEl", el);
      let getAnimations = (el) => {
        let style = $(el).children('style');
        if (!style.length) {
          return [];
        }
        let sheet = style.prop("sheet");
        result = []
        for (let rule of sheet.cssRules) {
          if (rule.type !== 1) continue;
          let name = rule.selectorText.replace("." + el.id, "");
          result.push(name);
        }
        return result;
      }
      let anmitions = getAnimations(el);

      $select = $("#animation_panel").children("#animation_select");
      $select.children().each(function () {
        $this = $(this);
        if ($this.attr("value")) {
          $this.remove();
        }
      })

      for (let key of anmitions) {
        let selected = "";
        if ($(el).hasClass(el.id + key)) {
          selected = "selected"
          $("#animation_panel").children("button[name='play']").text("暂停");
        }
        $select.append(`<option value='${key}' ${selected}>${key}</option>`)
      }
      $select.trigger("change");
    }
    var setImageURL = Editor.setImageURL = function (url) {
      if (!url) url = default_img_url;

      svgCanvas.setImageURL(url);
      $('#image_url').val(url);
    }

    var setInputWidth = function (elem) {
      var w = Math.min(Math.max(12 + elem.value.length * 6, 50), 300);
      $(elem).width(w);
    }

    // updates the context panel tools based on the selected element
    var updateContextPanel = function (e) {
      var elem = selectedElement;
      // If element has just been deleted, consider it null
      if (elem != null && !elem.parentNode) elem = null;
      if (multiselected && multiselected[0] != null && !multiselected[0].parentNode) multiselected = false;

      var currentLayerName = svgCanvas.getCurrentDrawing().getCurrentLayerName();
      var currentMode = svgCanvas.getMode();
      var unit = curConfig.baseUnit !== 'px' ? curConfig.baseUnit : null;
      var is_node = currentMode == 'pathedit'; //elem ? (elem.id && elem.id.indexOf('pathpointgrip') == 0) : false;

      if (is_node) {
        $('.context_panel').hide();
        $('#path_node_panel').show();
        $('#stroke_panel').hide();
        var point = path.getNodePoint();
        $('#tool_add_subpath').removeClass('push_button_pressed').addClass('tool_button');
        $('#tool_node_delete').toggleClass('disabled', !path.canDeleteNodes);

        if (point) {
          var seg_type = $('#seg_type');
          if (unit) {
            point.x = svgedit.units.convertUnit(point.x);
            point.y = svgedit.units.convertUnit(point.y);
          }
          $('#path_node_x').val(Math.round(point.x));
          $('#path_node_y').val(Math.round(point.y));
          if (point.type) {
            seg_type.val(point.type).removeAttr('disabled');
            $("#seg_type_label").html(point.type == 4 ? "Straight" : "Curve")
          } else {
            seg_type.val(4).attr('disabled', 'disabled');
          }
        }
        $("#tools_top").removeClass("multiselected")
        $("#canvas_panel").hide();
        return;
      }

      var menu_items = $('#cmenu_canvas li');
      $('.context_panel').hide();
      $('.menu_item', '#edit_menu').addClass('disabled');
      $('.menu_item', '#object_menu').addClass('disabled');

      //hack to show the proper multialign box
      if (multiselected) {
        multiselected = multiselected.filter(Boolean);
        elem = (svgCanvas.elementsAreSame(multiselected)) ? multiselected[0] : null
        if (elem) $("#tools_top").addClass("multiselected")
        $("#animation_panel").hide();
      } else {
        if (elem) {
          $('[id="svg_id"]').text(elem.id);
          $("#animation_panel").show();
        } else {
          $("#animation_panel").hide();
        }
        if (elem && elem.nodeName === "text") {
          $('#tool_postop').hide();
          $('#tool_posmiddle').hide();
          $('#tool_posbottom').hide();
        } else {
          $('#tool_postop').show();
          $('#tool_posmiddle').show();
          $('#tool_posbottom').show();
        }

      }

      if (!elem && !multiselected) {
        $("#tools_top").removeClass("multiselected")
        $("#stroke_panel").hide();
        $("#canvas_panel").show();
      }

      if (elem != null) {
        if (!multiselected) {
          $('#plc_bind').show();
        }
        $("#stroke_panel").show();
        var elname = elem.nodeName;
        var angle = svgCanvas.getRotationAngle(elem);
        $('#angle').val(Math.round(angle));

        var blurval = svgCanvas.getBlur(elem);
        $('#blur').val(blurval);
        if (!is_node && currentMode != 'pathedit') {
          $('#selected_panel').show();
          $('.action_selected').removeClass('disabled');
          // Elements in this array already have coord fields
          var x, y
          if (['g', 'polyline', 'path'].indexOf(elname) >= 0) {
            var bb = svgCanvas.getStrokedBBox([elem]);
            if (bb) {
              x = bb.x;
              y = bb.y;
            }
          }

          if (unit) {
            x = svgedit.units.convertUnit(x);
            y = svgedit.units.convertUnit(y);
          }

          $("#" + elname + "_x").val(Math.round(x))
          $("#" + elname + "_y").val(Math.round(y))
          if (elname === "polyline") {
            //we're acting as if polylines were paths
            $("#path_x").val(Math.round(x))
            $("#path_y").val(Math.round(y))
          }

          // Elements in this array cannot be converted to a path
          var no_path = ['image', 'text', 'path', 'g', 'use'].indexOf(elname) == -1;
          if (no_path) $('.action_path_convert_selected').removeClass('disabled');
          if (elname === "path") $('.action_path_selected').removeClass('disabled');

        }

        var link_href = null;
        if (el_name === 'a') {
          link_href = svgCanvas.getHref(elem);
          $('#g_panel').show();
        }

        if (elem.parentNode.tagName === 'a') {
          if (!$(elem).siblings().length) {
            $('#a_panel').show();
            link_href = svgCanvas.getHref(elem.parentNode);
          }
        }

        // Hide/show the make_link buttons
        $('#tool_make_link, #tool_make_link').toggle(!link_href);

        if (link_href) {
          $('#link_url').val(link_href);
        }

        // update contextual tools here
        var panels = {
          g: [],
          a: [],
          rect: ['rx', 'width', 'height', 'x', 'y'],
          image: ['width', 'height', 'x', 'y'],
          circle: ['cx', 'cy', 'r'],
          ellipse: ['cx', 'cy', 'rx', 'ry'],
          line: ['x1', 'y1', 'x2', 'y2'],
          text: ['x', 'y'],
          'use': [],
          path: []
        };

        var el_name = elem.tagName;

        if ($(elem).data('gsvg')) {
          $('#g_panel').show();
        }

        if (el_name == "path" || el_name == "polyline") {
          $('#path_panel').show();
        }

        if (panels[el_name]) {
          var cur_panel = panels[el_name];
          $('#' + el_name + '_panel').show();

          // corner radius has to live in a different panel
          // because otherwise it changes the position of the 
          // of the elements
          if (el_name == "rect") $("#cornerRadiusLabel").show()
          else $("#cornerRadiusLabel").hide()

          $.each(cur_panel, function (i, item) {
            var attrVal = elem.getAttribute(item);
            if (curConfig.baseUnit !== 'px' && elem[item]) {
              var bv = elem[item].baseVal.value;
              attrVal = svgedit.units.convertUnit(bv);
            }

            //update the draginput cursors
            var name_item = document.getElementById(el_name + '_' + item);
            name_item.value = Math.round(attrVal) || 0;
            if (name_item.getAttribute("data-cursor") === "true") {
              $.fn.dragInput.updateCursor(name_item);
            }
          });

          if (el_name == 'text') {
            var font_family = elem.getAttribute("font-family");
            var select = document.getElementById("font_family_dropdown");
            select.selectedIndex = 3

            $('#text_panel').css("display", "inline");
            $('#tool_italic').toggleClass('active', svgCanvas.getItalic())
            $('#tool_bold').toggleClass('active', svgCanvas.getBold())
            $('#font_family').val(font_family);
            $('#font_size').val(elem.getAttribute("font-size"));
            $('#text').val(elem.textContent);
            $('#preview_font').text(font_family.split(",")[0].replace(/'/g, "")).css('font-family', font_family);
            if (svgCanvas.addedNew) {
              // Timeout needed for IE9
              setTimeout(function () {
                $('#text').focus().select();
              }, 100);
            }
          } // text
          else if (el_name == 'image') {
            setImageURL(svgCanvas.getHref(elem));
          } // image
          else if (el_name === 'g' || el_name === 'use') {
            $('#container_panel').show();
            $('.action_group_selected').removeClass('disabled');
            var title = svgCanvas.getTitle();
          }
        }
        menu_items[(el_name === 'g' ? 'en' : 'dis') + 'ableContextMenuItems']('#ungroup');
        menu_items[((el_name === 'g' || !multiselected) ? 'dis' : 'en') + 'ableContextMenuItems']('#group');
      }

      if (multiselected) {
        $('#multiselected_panel').show();
        $('.action_multi_selected').removeClass('disabled');
        menu_items
          .enableContextMenuItems('#group')
          .disableContextMenuItems('#ungroup');
      }

      if (!elem) {
        menu_items.disableContextMenuItems('#delete,#cut,#copy,#group,#ungroup,#move_front,#move_up,#move_down,#move_back');
      }

      // update history buttons
      if (undoMgr.getUndoStackSize() > 0) {
        $('#tool_undo').removeClass('disabled');
      }
      else {
        $('#tool_undo').addClass('disabled');
      }
      if (undoMgr.getRedoStackSize() > 0) {
        $('#tool_redo').removeClass('disabled');
      }
      else {
        $('#tool_redo').addClass('disabled');
      }

      svgCanvas.addedNew = false;

      if ((elem && !is_node) || multiselected) {
        // update the selected elements' layer
        $('#selLayerNames').removeAttr('disabled').val(currentLayerName);

        // Enable regular menu options
        canv_menu.enableContextMenuItems('#delete,#cut,#copy,#move_front,#move_up,#move_down,#move_back,#topath,#import');
      }
    };

    $('#text').on("focus", function (e) { textBeingEntered = true; });
    $('#text').on("blur", function () { textBeingEntered = false; });

    // bind the selected event to our function that handles updates to the UI
    svgCanvas.bind("selected", selectedChanged);
    svgCanvas.bind("transition", elementTransition);
    svgCanvas.bind("changed", elementChanged);
    svgCanvas.bind("exported", exportHandler);
    svgCanvas.bind("zoomed", zoomChanged);
    svgCanvas.bind("contextset", contextChanged);
    svgCanvas.bind("extension_added", extAdded);
    svgCanvas.textActions.setInputElem($("#text")[0]);

    var changeFontSize = function (ctl) {
      svgCanvas.setFontSize(ctl.value);
    }

    var changeStrokeWidth = function (ctl) {
      var val = ctl.value;
      if (val == 0 && selectedElement && ['line', 'polyline'].indexOf(selectedElement.nodeName) >= 0) {
        val = ctl.value = 1;
      }
      svgCanvas.setStrokeWidth(val);
    }

    //cache
    var $indicator = $('#tool_angle_indicator')
    var $reorient = $('#tool_reorient')

    rotateCursor = function (angle) {
      var rotate_string = 'rotate(' + angle + 'deg)'
      $indicator.css({
        '-webkit-transform': rotate_string,
        '-moz-transform': rotate_string,
        '-o-transform': rotate_string,
        '-ms-transform': rotate_string,
        'transform': rotate_string
      });
    }

    var changeRotationAngle = function (ctl) {
      var preventUndo = true;
      svgCanvas.setRotationAngle(ctl.value, preventUndo);
      rotateCursor(ctl.value)
      $('#tool_reorient').toggleClass('disabled', ctl.value == 0);
    }

    var changeZoom = function (ctl) {
      var zoomlevel = ctl.value / 100;
      if (zoomlevel < .001) {
        ctl.value = .1;
        return;
      }
      var zoom = svgCanvas.getZoom();
      var w_area = workarea;
      zoomChanged(window, {
        width: 0,
        height: 0,
        // center pt of scroll position
        x: (w_area[0].scrollLeft + w_area.width() / 2) / zoom,
        y: (w_area[0].scrollTop + w_area.height() / 2) / zoom,
        zoom: zoomlevel
      }, true);
    }

    var changeBlur = function (ctl, completed) {
      val = ctl.value;
      $('#blur').val(val);
      if (completed) {
        svgCanvas.setBlur(val, true);
      }
      else {
        svgCanvas.setBlurNoUndo(val);
      }
    }

    var operaRepaint = function () {
      // Repaints canvas in Opera. Needed for stroke-dasharray change as well as fill change
      if (!window.opera) return;
      $('<p/>').hide().appendTo('body').remove();
    }

    $('#stroke_style').change(function () {
      svgCanvas.setStrokeAttr('stroke-dasharray', $(this).val());
      $("#stroke_style_label").html(this.options[this.selectedIndex].text)
      $("#_stroke_style").val($(this).val());
      operaRepaint();
    });
    $("#_stroke_style").change(function () {
      this.blur();
      svgCanvas.setStrokeAttr('stroke-dasharray', $(this).val());
      $("#stroke_style_label").html("");
      operaRepaint();
    })

    $('#seg_type').change(function () {
      svgCanvas.setSegType($(this).val());
      $("#seg_type_label").html(this.options[this.selectedIndex].text)
    });

    // Lose focus for select elements when changed (Allows keyboard shortcuts to work better)
    $('select').change(function () { $(this).blur(); });

    $('#font_family').change(function () {
      svgCanvas.setFontFamily(this.value);
    });

    $('#text').keyup(function () {
      svgCanvas.setTextContent(this.value);
    });

    changeAttribute = function (el, completed) {
      var attr = el.getAttribute("data-attr");
      var multiplier = el.getAttribute("data-multiplier") || 1;
      multiplier = parseFloat(multiplier);
      var val = el.value * multiplier;
      var valid = svgedit.units.isValidUnit(attr, val, selectedElement);
      if (!valid) {
        $.alert("Invalid value given");
        el.value = selectedElement.getAttribute(attr);
        return false;
      }
      //if (!noUndo) svgCanvas.changeSelectedAttribute(attr, val);
      svgCanvas.changeSelectedAttributeNoUndo(attr, val);
    };

    $("#toggle_stroke_tools").toggle(function () {
      $(".stroke_tool").css('display', 'table-cell');
      $(this).addClass('expanded');
      resetScrollPos();
    }, function () {
      $(".stroke_tool").css('display', 'none');
      $(this).removeClass('expanded');
      resetScrollPos();
    });

    var toolButtonClick = function (button, noHiding) {
      if ($(button).hasClass('disabled')) return false;
      if ($(button).parent().hasClass('tools_flyout')) return true;
      var fadeFlyouts = fadeFlyouts || 'normal';
      if (!noHiding) {
        $('.tools_flyout').fadeOut(fadeFlyouts);
      }
      $('#styleoverrides').text('');
      $('.tool_button.current').removeClass('current');
      $(button).addClass('current');
      return true;
    };

    (function () {
      var last_x = null, last_y = null, w_area = workarea[0],
        panning = false, keypan = false;

      var move_pan = function (evt) {
        if (panning === false) return;

        w_area.scrollLeft -= (evt.clientX - last_x);
        w_area.scrollTop -= (evt.clientY - last_y);
        last_x = evt.clientX;
        last_y = evt.clientY;
        if (evt.type === 'mouseup' || evt.type === 'touchend') panning = false;
        return false;
      }

      var start_pan = function (evt) {
        if (evt.button === 1 || keypan === true || (evt.originalEvent.touches && evt.originalEvent.touches.length >= 2)) {
          panning = true;
          last_x = evt.clientX;
          last_y = evt.clientY;
          return false;
        }
      }

      $('#svgcanvas')
        .on('mousemove mouseup touchend', move_pan)
        .on("mousedown touchmove", start_pan)

      $(window).mouseup(function () {
        panning = false;
      });

      $(document).bind('keydown', 'space', function (evt) {
        evt.preventDefault();
        svgCanvas.spaceKey = keypan = true;

      }).bind('keyup', 'space', function (evt) {
        evt.preventDefault();
        svgCanvas.spaceKey = keypan = false;
      }).bind('keydown', 'alt', function (evt) {
        if (svgCanvas.getMode() === 'zoom') {
          workarea.addClass('out');
        }
      }).bind('keyup', 'alt', function (evt) {
        if (svgCanvas.getMode() === 'zoom') {
          workarea.removeClass('out');
        }
      })
    }());


    function setStrokeOpt(opt, changeElem) {
      var id = opt.id;
      var bits = id.split('_');
      var pre = bits[0];
      var val = bits[1];

      if (changeElem) {
        svgCanvas.setStrokeAttr('stroke-' + pre, val);
      }
      operaRepaint();
      $(opt).addClass('current').siblings().removeClass('current');
    }

    //menu handling
    var menus = $('.menu');
    var blinker = function (e) {
      e.target.style.background = "#fff";
      setTimeout(function () { e.target.style.background = "#ddd"; }, 50);
      setTimeout(function () { e.target.style.background = "#fff"; }, 150);
      setTimeout(function () { e.target.style.background = "#ddd"; }, 200);
      setTimeout(function () { e.target.style.background = ""; }, 200);
      setTimeout(function () { $('#menu_bar').removeClass('active') }, 220);
      return false;
    }
    var closer = function (e) {
      if (e.target.nodeName && e.target.nodeName.toLowerCase() === "input") return false;
      if (!$(e.target).hasClass("menu_title") && !$(e.target).parent().hasClass("menu_title")) {
        if (!$(e.target).hasClass("disabled") && $(e.target).hasClass("menu_item")) blinker(e)
        else $('#menu_bar').removeClass('active')
      }

    }

    $('.menu_item').on('mousedown touchstart', function (e) { blinker(e) });
    $("svg, body").on('mousedown  touchstart', function (e) { closer(e) });

    var accumulatedDelta = 0
    $('#workarea').on('mousewheel', function (e, delta, deltaX, deltaY) {
      if (e.altKey || e.ctrlKey) {
        e.preventDefault();
        zoom = parseInt($("#zoom").val())
        $("#zoom").val(parseInt(zoom + deltaY * (e.altKey ? 10 : 5))).change()
      }
    });

    $('.menu_title')
      .on('mousedown', function () {
        $("#tools_shapelib").hide()
        $("#menu_bar").toggleClass('active');
        menus.removeClass('open');
        $(this).parent().addClass('open');
      })
      .on('mouseover', function () {
        menus.removeClass('open');
        $(this).parent().addClass('open');
      });

    $('#font_family_dropdown').change(function () {
      var fam = this.options[this.selectedIndex].value
      var fam_display = this.options[this.selectedIndex].text
      $('#preview_font').html(fam_display).css("font-family", fam);
      $('#font_family').val(fam).change();
    });

    $('div', '#position_opts').each(function () {
      this.addEventListener("mouseup", function () {
        var letter = this.id.replace('tool_pos', '').charAt(0);
        svgCanvas.alignSelectedElements(letter, 'page');
      })
    });


    // Unfocus text input when workarea is mousedowned.
    (function () {
      var inp;
      var unfocus = function () {
        $(inp).blur();
      }

      $('#svg_editor').find('button, select, input:not(#text)').focus(function () {
        inp = this;
        ui_context = 'toolbars';
        workarea.mousedown(unfocus);
      }).blur(function () {
        ui_context = 'canvas';
        workarea.unbind('mousedown', unfocus);
        // Go back to selecting text if in textedit mode
        if (svgCanvas.getMode() == 'textedit') {
          $('#text').focus();
        }
      });

    }());

    var clickSelect = function () {
      if (toolButtonClick('#tool_select')) {
        svgCanvas.setMode('select');
      }
    };

    var clickFHPath = function () {
      if (toolButtonClick('#tool_fhpath')) {
        svgCanvas.setMode('fhpath');
      }
    };

    var clickLine = function () {
      if (toolButtonClick('#tool_line')) {
        svgCanvas.setMode('line');
      }
    };



    var clickRect = function () {
      if (toolButtonClick('#tool_rect')) {
        svgCanvas.setMode('rect');
      }
    };



    var clickEllipse = function () {
      if (toolButtonClick('#tool_ellipse')) {
        svgCanvas.setMode('ellipse');
      }
    };

    var clickZoom = function () {
      if (toolButtonClick('#tool_zoom')) {
        svgCanvas.setMode('zoom');
      }
    };


    var clickText = function () {
      if (toolButtonClick('#tool_text')) {
        svgCanvas.setMode('text');
      }
    };

    var clickPath = function () {
      if (toolButtonClick('#tool_path')) {
        svgCanvas.setMode('path');
      }
    };


    var clickEyedropper = function () {
      if (toolButtonClick('#tool_eyedropper')) {
        svgCanvas.setMode('eyedropper');
      }
    }

    var clickShapelib = function () {
      if (toolButtonClick('#tool_shapelib')) {
        $('#workarea').one("mousedown", function () { $('#tools_shapelib').hide() })
        $("#tools_shapelib").css({
          "top": $('#tool_shapelib').offset().top,
          "margin-left": 3,
        })
        $("#tools_shapelib").show();
      }
    }

    // Delete is a contextual tool that only appears in the ribbon if
    // an element has been selected
    var deleteSelected = function () {
      if (selectedElement != null || multiselected) {
        svgCanvas.deleteSelectedElements();
      }
      if (path.getNodePoint()) {
        path.deletePathNode();
      }
    };

    var cutSelected = function () {
      if (selectedElement != null || multiselected) {
        flash($('#edit_menu'));
        svgCanvas.cutSelectedElements();
      }
    };

    var copySelected = function () {
      if (selectedElement != null || multiselected) {
        flash($('#edit_menu'));
        svgCanvas.copySelectedElements();
      }
    };

    var pasteSelected = function () {
      flash($('#edit_menu'));
      var zoom = svgCanvas.getZoom();
      var x = (workarea[0].scrollLeft + workarea.width() / 2) / zoom - svgCanvas.contentW;
      var y = (workarea[0].scrollTop + workarea.height() / 2) / zoom - svgCanvas.contentH;
      svgCanvas.pasteElements('point', x, y);
    }

    var moveToTopSelected = function () {
      if (selectedElement != null) {
        flash($('#object_menu'));
        svgCanvas.moveToTopSelectedElement();
      }
    };

    var moveToBottomSelected = function () {
      if (selectedElement != null) {
        flash($('#object_menu'));
        svgCanvas.moveToBottomSelectedElement();
      }
    };

    var moveUpSelected = function () {
      if (selectedElement != null) {
        flash($('#object_menu'));
        svgCanvas.moveUpDownSelected("Up");
      }
    };

    var moveDownSelected = function () {
      if (selectedElement != null) {
        flash($('#object_menu'));
        svgCanvas.moveUpDownSelected("Down");
      }
    };

    var moveUpDownSelected = function (dir) {
      if (selectedElement != null) {
        flash($('#object_menu'));
        svgCanvas.moveUpDownSelected(dir);
      }
    };

    var convertToPath = function () {
      if (selectedElement != null && !['g', 'path', 'image'].includes(selectedElement.localName)) {
        svgCanvas.convertToPath();
        var elems = svgCanvas.getSelectedElems()
        svgCanvas.selectorManager.requestSelector(elems[0]).reset(elems[0])
        //svgCanvas.selectorManager.requestSelector(elems[0]).selectorRect.setAttribute("display", "none");
        svgCanvas.setMode("pathedit")
        path.toEditMode(elems[0]);
        svgCanvas.clearSelection();
        updateContextPanel();
      }
    }

    var reorientPath = function () {
      if (selectedElement != null) {
        path.reorient();
      }
    }

    var makeHyperlink = function () {
      if (selectedElement != null || multiselected) {
        $.prompt("Enter the new hyperlink URL", "http://", function (url) {
          if (url) svgCanvas.makeHyperlink(url);
        });
      }
    }

    var moveSelected = function (dx, dy) {
      if (selectedElement != null || multiselected) {
        if (curConfig.gridSnapping) {
          // Use grid snap value regardless of zoom level
          var multi = svgCanvas.getZoom() * curConfig.snappingStep;
          dx *= multi;
          dy *= multi;
        }
        $('input').blur()
        svgCanvas.moveSelectedElements(dx, dy);
      }
    };

    var linkControlPoints = function () {
      //  var linked = document.getElementById('tool_node_link').checked;
      //  path.linkControlPoints(linked);
    }

    var clonePathNode = function () {
      if (path.getNodePoint()) {
        path.clonePathNode();
      }
    };

    var deletePathNode = function () {
      if (path.getNodePoint()) {
        path.deletePathNode();
      }
    };

    var addSubPath = function () {
      var button = $('#tool_add_subpath');
      var sp = !button.hasClass('push_button_pressed');
      if (sp) {
        button.addClass('push_button_pressed').removeClass('tool_button');
      } else {
        button.removeClass('push_button_pressed').addClass('tool_button');
      }

      path.addSubPath(sp);

    };

    var opencloseSubPath = function () {
      path.opencloseSubPath();
    }

    var selectNext = function () {
      svgCanvas.cycleElement(1);
    };

    var selectPrev = function () {
      svgCanvas.cycleElement(0);
    };

    var rotateSelected = function (cw, step) {
      if (selectedElement == null || multiselected) return;
      if (!cw) step *= -1;
      var new_angle = $('#angle').val() * 1 + step;
      svgCanvas.setRotationAngle(new_angle);
      updateContextPanel();
    };

    var clickClear = function () {
      var dims = curConfig.dimensions;
      $.confirm("<strong>Do you want to clear the drawing?</strong>\nThis will also erase your undo history", function (ok) {
        if (!ok) return;
        setSelectMode();
        svgCanvas.deleteSelectedElements();
        svgCanvas.clear();
        svgCanvas.setResolution(dims[0], dims[1]);
        updateCanvas(true);
        createBackground();
        zoomImage();
        updateContextPanel();
        prepPaints();
        svgCanvas.runExtensions('onNewDocument');
      });
    };

    var clickBold = function () {
      svgCanvas.setBold(!svgCanvas.getBold());
      updateContextPanel();
    };

    var clickItalic = function () {
      svgCanvas.setItalic(!svgCanvas.getItalic());
      updateContextPanel();
    };

    var clickExport = function () {
      if (window.canvg) {
        svgCanvas.rasterExport();
      } else {
        $.getScript('/js/lib/rgbcolor.js', function () {
          $.getScript('/js/lib/canvg.js', function () {
            svgCanvas.rasterExport();
          });
        });
      }
    }

    // by default, svgCanvas.open() is a no-op.
    // it is up to an extension mechanism (opera widget, etc) 
    // to call setCustomHandlers() which will make it do something
    var clickOpen = function () {
      svgCanvas.open();
    };
    var clickImport = function () {
    };

    var flash = function ($menu) {
      var menu_title = $menu.prev();
      menu_title.css({
        "background": "white",
        "color": "black"
      });
      setTimeout(function () { menu_title.removeAttr("style") }, 200);
    }

    var clickUndo = function () {
      if (undoMgr.getUndoStackSize() > 0) {
        flash($('#edit_menu'));
        undoMgr.undo();
      }
    };

    var clickRedo = function () {
      if (undoMgr.getRedoStackSize() > 0) {
        flash($('#edit_menu'));
        undoMgr.redo();
      }
    };

    var clickGroup = function () {
      // group
      if (multiselected) {
        flash($('#object_menu'));
        svgCanvas.groupSelectedElements();
      }
      // ungroup
      else if (selectedElement) {
        flash($('#object_menu'));
        svgCanvas.ungroupSelectedElement();
      }
    };

    var clickClone = function () {
      flash($('#edit_menu'));
      svgCanvas.cloneSelectedElements(20, 20);
    };

    var clickAlign = function () {
      var letter = this.id.replace('tool_align', '').charAt(0);
      svgCanvas.alignSelectedElements(letter, $('#align_relative_to').val());
    };

    var clickSwitch = function () {
      var stroke_rect = document.querySelector('#tool_stroke rect');
      $("#tool_stroke").toggleClass('active')
      $("#tool_fill").toggleClass('active')
      var fill_rect = document.querySelector('#tool_fill rect');
      var fill_color = fill_rect.getAttribute("fill");
      var stroke_color = stroke_rect.getAttribute("fill");
      var stroke_opacity = parseFloat(stroke_rect.getAttribute("stroke-opacity"));
      if (isNaN(stroke_opacity)) { stroke_opacity = 100; }
      var fill_opacity = parseFloat(fill_rect.getAttribute("fill-opacity"));
      if (isNaN(fill_opacity)) { fill_opacity = 100; }
      var stroke = getPaint(stroke_color, stroke_opacity, "stroke");
      var fill = getPaint(fill_color, fill_opacity, "fill");
      Editor.paintBox.fill.setPaint(stroke, true);
      Editor.paintBox.stroke.setPaint(fill, true);

    };

    var zoomImage = function (multiplier) {
      var res = svgCanvas.getResolution();
      multiplier = multiplier ? res.zoom * multiplier : 1;
      //    setResolution(res.w * multiplier, res.h * multiplier, true);
      $('#zoom').val(multiplier * 100);
      svgCanvas.setZoom(multiplier);
      zoomDone();
      updateCanvas(true);
    };

    var zoomDone = function () {
      //    updateBgImage();
      updateWireFrame();
      //updateCanvas(); // necessary?
    }

    var clickWireframe = function () {
      flash($('#view_menu'));
      var wf = !$('#tool_wireframe').hasClass('push_button_pressed');
      if (wf)
        $('#tool_wireframe').addClass('push_button_pressed');
      else
        $('#tool_wireframe').removeClass('push_button_pressed');
      workarea.toggleClass('wireframe');

      if (supportsNonSS) return;
      var wf_rules = $('#wireframe_rules');
      if (!wf_rules.length) {
        wf_rules = $('<style id="wireframe_rules"><\/style>').appendTo('head');
      } else {
        wf_rules.empty();
      }

      updateWireFrame();
    }

    var clickSnapGrid = function () {
      flash($('#view_menu'));
      var sg = !$('#tool_snap').hasClass('push_button_pressed');
      if (sg)
        $('#tool_snap').addClass('push_button_pressed');
      else
        $('#tool_snap').removeClass('push_button_pressed');
      curConfig.gridSnapping = sg;
    }

    var minimizeModal = function () {

      if (window.self != window.top) { //we're in an iframe
        top.exit_fullscreen();
      }
      clickSelect();
    }

    var clickRulers = function () {
      flash($('#view_menu'));
      var rulers = !$('#tool_rulers').hasClass('push_button_pressed');
      if (rulers) {
        $('#tool_rulers').addClass('push_button_pressed');
        $('#show_rulers').attr("checked", true);
        curConfig.showRulers = true;
      }
      else {
        $('#tool_rulers').removeClass('push_button_pressed');
        $('#show_rulers').attr("checked", false);
        curConfig.showRulers = false;
      }
      $('#rulers').toggle(!!curConfig.showRulers)
    }

    var updateWireFrame = function () {
      // Test support
      if (supportsNonSS) return;

      var rule = "#workarea.wireframe #svgcontent * { stroke-width: " + 1 / svgCanvas.getZoom() + "px; }";
      $('#wireframe_rules').text(workarea.hasClass('wireframe') ? rule : "");
    }

    var showSourceEditor = function (e, forSaving) {
      if (editingsource) return;
      flash($('#view_menu'));
      editingsource = true;

      $('#save_output_btns').toggle(!!forSaving);
      $('#tool_source_back').toggle(!forSaving);

      var str = orig_source = svgCanvas.getSvgString();
      $('#svg_source_textarea').val(str);
      $('#svg_source_editor').fadeIn();
      $('#svg_source_textarea').focus().select();
    };

    var clickSave = function () {
      flash($('#file_menu'));
      svgCanvas.save();
    };

    var saveSourceEditor = function () {
      if (!editingsource) return;

      var saveChanges = function () {
        svgCanvas.clearSelection();
        hideSourceEditor();
        zoomImage();
        prepPaints();
      }

      if (!svgCanvas.setSvgString($('#svg_source_textarea').val())) {
        $.confirm("There were parsing errors in your SVG source.\nRevert back to original SVG source?", function (ok) {
          if (!ok) return false;
          saveChanges();
        });
      } else {
        saveChanges();
      }
      setSelectMode();
    };

    function setBackground(color, url) {
      $.pref('bkgd_color', color);
      $.pref('bkgd_url', url);
      // This should be done in svgcanvas.js for the borderRect fill
      svgCanvas.setBackground(color, url);
    }

    var ua_prefix;
    (ua_prefix = function () {
      var regex = /^(Moz|Webkit|Khtml|O|ms|Icab)(?=[A-Z])/;
      var someScript = document.getElementsByTagName('script')[0];
      for (var prop in someScript.style) {
        if (regex.test(prop)) {
          // test is faster than match, so it's better to perform
          // that on the lot and match only when necessary
          return prop.match(regex)[0];
        }
      }

      // Nothing found so far?
      if ('WebkitOpacity' in someScript.style) return 'Webkit';
      if ('KhtmlOpacity' in someScript.style) return 'Khtml';

      return '';
    }());

    var scaleElements = function (elems, scale) {
      var prefix = '-' + ua_prefix.toLowerCase() + '-';

      var sides = ['top', 'left', 'bottom', 'right'];

      elems.each(function () {
        //          console.log('go', scale);

        // Handled in CSS
        // this.style[ua_prefix + 'Transform'] = 'scale(' + scale + ')';

        var el = $(this);

        var w = el.outerWidth() * (scale - 1);
        var h = el.outerHeight() * (scale - 1);
        var margins = {};

        for (var i = 0; i < 4; i++) {
          var s = sides[i];

          var cur = el.data('orig_margin-' + s);
          if (cur == null) {
            cur = parseInt(el.css('margin-' + s));
            // Cache the original margin
            el.data('orig_margin-' + s, cur);
          }
          var val = cur * scale;
          if (s === 'right') {
            val += w;
          } else if (s === 'bottom') {
            val += h;
          }

          el.css('margin-' + s, val);
          //            el.css('outline', '1px solid red');
        }
      });
    }

    var cancelOverlays = function () {
      $('#dialog_box').hide();
      if (!editingsource && !docprops && !preferences) {
        if (cur_context) {
          svgCanvas.leaveContext();
        }
        return;
      };

      if (editingsource) {
        if (orig_source !== $('#svg_source_textarea').val()) {
          $.confirm("Ignore changes made to SVG source?", function (ok) {
            if (ok) hideSourceEditor();
          });
        } else {
          hideSourceEditor();
        }
      }
      else if (docprops) {
        hideDocProperties();
      } else if (preferences) {
        hidePreferences();
      }
      resetScrollPos();
    };

    var hideSourceEditor = function () {
      $('#svg_source_editor').hide();
      editingsource = false;
      $('#svg_source_textarea').blur();
    };

    var win_wh = { width: $(window).width(), height: $(window).height() };

    var resetScrollPos = $.noop, curScrollPos;
    $(window).resize(updateCanvas);

    (function () {
      workarea.scroll(function () {
        // TODO:  jQuery's scrollLeft/Top() wouldn't require a null check
        if ($('#ruler_x').length != 0) {
          $('#ruler_x')[0].scrollLeft = workarea[0].scrollLeft;
        }
        if ($('#ruler_y').length != 0) {
          $('#ruler_y')[0].scrollTop = workarea[0].scrollTop;
        }
      });

    }());

    $('#change_image_url').click(promptImgURL);

    function promptImgURL() {
      var curhref = svgCanvas.getHref(selectedElement);
      curhref = curhref.indexOf("data:") === 0 ? "" : curhref;
      $.prompt("Enter the new image URL", curhref, function (url) {
        if (url) setImageURL(url);
      });
    }

    // TODO: go back to the color boxes having white background-color and then setting
    //       background-image to none.png (otherwise partially transparent gradients look weird)  
    var colorPicker = function (elem) {
      var picker = elem[0].id == 'stroke_color' ? 'stroke' : 'fill';
      var is_background = elem[0].id == "canvas_color"
      if (is_background) picker = 'canvas'
      //        var opacity = (picker == 'stroke' ? $('#stroke_opacity') : $('#fill_opacity'));
      var paint = Editor.paintBox[picker].paint;

      var title = (picker == 'stroke' ? 'Pick a Stroke Paint and Opacity' : 'Pick a Fill Paint and Opacity');
      var was_none = false;
      var pos = is_background ? { 'right': 175, 'top': 50 } : { 'left': 50, 'bottom': 50 }

      $("#color_picker")
        .draggable({ cancel: '.jGraduate_tabs, .jGraduate_colPick, .jGraduate_gradPick, .jPicker', containment: 'window' })
        .removeAttr("style")
        .css(pos)
        .jGraduate(
          {
            paint: paint,
            window: { pickerTitle: title },
            images: { clientPath: curConfig.jGraduatePath },
            newstop: 'inverse'
          },
          function (p) {
            paint = new $.jGraduate.Paint(p);

            Editor.paintBox[picker].setPaint(paint);
            svgCanvas.setPaint(picker, paint);

            $('#color_picker').hide();
          },
          function (p) {
            $('#color_picker').hide();
          });
    };

    var PaintBox = function (container, type) {
      var background = document.getElementById("canvas_background");
      var cur = { color: "fff", opacity: 1 }
      if (type == "stroke") cur = curConfig['initStroke'];
      if (type == "fill") cur = curConfig['initFill'];
      if (type == "canvas" && background) {
        var rgb = background.getAttribute("fill").match(/^rgb\((\d+),\s*(\d+),\s*(\d+)\)$/);
        if (rgb) {
          var hex = ("0" + parseInt(rgb[1], 10).toString(16)).slice(-2) +
            ("0" + parseInt(rgb[2], 10).toString(16)).slice(-2) +
            ("0" + parseInt(rgb[3], 10).toString(16)).slice(-2);
          cur = { color: hex, opacity: 1 }
        }
      }

      // set up gradients to be used for the buttons
      var svgdocbox = new DOMParser().parseFromString(
        '<svg xmlns="http://www.w3.org/2000/svg"><rect width="100%" height="100%"\
        fill="#' + cur.color + '" opacity="' + cur.opacity + '"/>\
        <defs><linearGradient id="gradbox_"/></defs></svg>', 'text/xml');
      var docElem = svgdocbox.documentElement;

      docElem = $(container)[0].appendChild(document.importNode(docElem, true));
      if (type === 'canvas') docElem.setAttribute('width', 60.5);
      else docElem.setAttribute('width', "100%");

      this.rect = docElem.firstChild;
      this.defs = docElem.getElementsByTagName('defs')[0];
      this.grad = this.defs.firstChild;
      this.paint = new $.jGraduate.Paint({ solidColor: cur.color });
      this.type = type;

      this.setPaint = function (paint, apply, noUndo) {
        this.paint = paint;
        var fillAttr = "none";
        var ptype = paint.type;
        var opac = paint.alpha / 100;
        switch (ptype) {
          case 'solidColor':
            fillAttr = (paint[ptype] == 'none' || paint[ptype] == 'one') ? 'none' : "#" + paint[ptype];
            break;
          case 'linearGradient':
          case 'radialGradient':
            this.defs.removeChild(this.grad);
            this.grad = this.defs.appendChild(paint[ptype]);
            var id = this.grad.id = 'gradbox_' + this.type;
            fillAttr = "url(#" + id + ')';
        }
        this.rect.setAttribute('fill', fillAttr);
        this.rect.setAttribute('opacity', opac);

        if (this.type == "canvas") {
          //recache background in case it changed
          var background = document.getElementById("canvas_background");
          if (background) {
            res = svgCanvas.getResolution()
            background.setAttribute("x", -1);
            background.setAttribute("y", -1);
            background.setAttribute("width", res.w + 2);
            background.setAttribute("height", res.h + 2);
            if (fillAttr.indexOf("url") == -1) background.setAttribute('fill', fillAttr)
          }
          else createBackground(fillAttr)
        }

        if (apply) {
          svgCanvas.setColor(this.type, fillAttr, true);
          svgCanvas.setPaintOpacity(this.type, opac, true);
        }

      }

      this.update = function (apply) {
        if (!selectedElement) return;
        var type = this.type;
        switch (selectedElement.tagName) {
          case 'use':
          case 'image':
          case 'foreignObject':
            // These elements don't have fill or stroke, so don't change 
            // the current value
            return;
          case 'g':
          case 'a':
            var gPaint = null;

            var childs = selectedElement.getElementsByTagName('*');
            for (var i = 0, len = childs.length; i < len; i++) {
              var elem = childs[i];
              var p = elem.getAttribute(type);
              if (i === 0) {
                gPaint = p;
              } else if (gPaint !== p) {
                gPaint = null;
                break;
              }
            }
            if (gPaint === null) {
              // No common color, don't update anything
              var paintColor = null;
              return;
            }
            var paintColor = gPaint;

            var paintOpacity = 1;
            break;
          default:
            var paintOpacity = parseFloat(selectedElement.getAttribute(type + "-opacity"));
            if (isNaN(paintOpacity)) {
              paintOpacity = 1.0;
            }

            var defColor = type === "fill" ? "black" : "none";
            var paintColor = selectedElement.getAttribute(type) || defColor;
        }
        if (apply) {
          svgCanvas.setColor(type, paintColor, true);
          svgCanvas.setPaintOpacity(type, paintOpacity, true);
        }

        paintOpacity *= 100;

        var paint = getPaint(paintColor, paintOpacity, type);
        // update the rect inside #fill_color/#stroke_color
        this.setPaint(paint);
      }

      this.prep = function () {
        var ptype = this.paint.type;

        switch (ptype) {
          case 'linearGradient':
          case 'radialGradient':
            var paint = new $.jGraduate.Paint({ copy: this.paint });
            svgCanvas.setPaint(type, paint);
        }
      }
    };

    Editor.paintBox.fill = new PaintBox('#fill_color', 'fill');
    Editor.paintBox.stroke = new PaintBox('#stroke_color', 'stroke');
    Editor.paintBox.canvas = new PaintBox('#canvas_color', 'canvas');

    $('#stroke_width').val(curConfig.initStroke.width);
    $('#group_opacity').val(curConfig.initOpacity * 100);

    // Use this SVG elem to test vectorEffect support
    var test_el = Editor.paintBox.fill.rect.cloneNode(false);
    test_el.setAttribute('style', 'vector-effect:non-scaling-stroke');
    var supportsNonSS = (test_el.style.vectorEffect === 'non-scaling-stroke');
    test_el.removeAttribute('style');
    var svgdocbox = Editor.paintBox.fill.rect.ownerDocument;
    // Use this to test support for blur element. Seems to work to test support in Webkit
    var blur_test = svgdocbox.createElementNS('http://www.w3.org/2000/svg', 'feGaussianBlur');
    if (typeof blur_test.stdDeviationX === "undefined") {
      $('#tool_blur').hide();
    }
    $(blur_test).remove();

    $('#tool_fill').click(function () {
      if ($('#tool_fill').hasClass('active')) {
        colorPicker($('#fill_color'));
      }
      else {
        $('#tool_fill').addClass('active');
        $("#tool_stroke").removeClass('active');
      }
    });

    $('#tool_stroke').on("click", function () {
      if ($('#tool_stroke').hasClass('active')) {
        colorPicker($('#stroke_color'));
      }
      else {
        $('#tool_stroke').addClass('active');
        $("#tool_fill").removeClass('active');
      }
    });

    $('#tool_canvas').on("click touchstart", function () {
      colorPicker($('#canvas_color'));
    });

    $('#tool_stroke').on("touchstart", function () {
      $('#tool_stroke').addClass('active');
      $("#tool_fill").removeClass('active');
      colorPicker($('#stroke_color'));
    });

    $('#tool_fill').on("touchstart", function () {
      $('#tool_fill').addClass('active');
      $("#tool_stroke").removeClass('active');
      colorPicker($('#fill_color'));
    });

    $('#zoom_select').on("change", function () {
      var val = this.options[this.selectedIndex].text
      val = val.split("%")[0]
      $("#zoom").val(val).trigger("change")
    });

    $('.push_button').mousedown(function () {
      if (!$(this).hasClass('disabled')) {
        $(this).addClass('push_button_pressed').removeClass('push_button');
      }
    }).mouseout(function () {
      $(this).removeClass('push_button_pressed').addClass('push_button');
    }).mouseup(function () {
      $(this).removeClass('push_button_pressed').addClass('push_button');
    });


    //  function changeResolution(x,y) {
    //    var zoom = svgCanvas.getResolution().zoom;
    //    setResolution(x * zoom, y * zoom);
    //  }

    var centerCanvas = function () {
      // this centers the canvas vertically in the workarea (horizontal handled in CSS)
      workarea.css('line-height', workarea.height() + 'px');
    };

    $(window).bind('load resize', centerCanvas);

    function stepFontSize(elem, step) {
      var orig_val = elem.value - 0;
      var sug_val = orig_val + step;
      var increasing = sug_val >= orig_val;
      if (step === 0) return orig_val;

      if (orig_val >= 24) {
        if (increasing) {
          return Math.round(orig_val * 1.1);
        } else {
          return Math.round(orig_val / 1.1);
        }
      } else if (orig_val <= 1) {
        if (increasing) {
          return orig_val * 2;
        } else {
          return orig_val / 2;
        }
      } else {
        return sug_val;
      }
    }

    function stepZoom(elem, step) {
      var orig_val = elem.value - 0;
      if (orig_val === 0) return 100;
      var sug_val = orig_val + step;
      if (step === 0) return orig_val;

      if (orig_val >= 100) {
        return sug_val;
      } else {
        if (sug_val >= orig_val) {
          return orig_val * 2;
        } else {
          return orig_val / 2;
        }
      }
    }

    var changeCanvasSize = function (ctl) {
      var width = $("#canvas_width");
      var height = $("#canvas_height");
      var w = width.val();
      var h = height.val()

      if (w != "fit" && !svgedit.units.isValidUnit('width', w)) {
        $.alert("Invalid value given");
        width.parent().addClass('error');
        return false;
      }

      width.parent().removeClass('error');

      if (h != "fit" && !svgedit.units.isValidUnit('height', h)) {
        $.alert("Invalid value given");
        height.parent().addClass('error');
        return false;
      }
      height.parent().removeClass('error');
      if (!svgCanvas.setResolution(w, h)) {
        $.alert("No content to fit to");
        var dims = svgCanvas.getResolution()
        width.val(dims.w)
        height.val(dims.h)
        return false;
      }
      updateCanvas();
    }


    $('#resolution').change(function () {
      var w = $('#canvas_width')[0];
      var h = $('#canvas_height')[0];
      if (!this.selectedIndex) {
        $('#resolution_label').html("Custom");
        w.removeAttribute("readonly");
        w.focus();
        w.select();
        if (w.value == 'fit') {
          w.value = 100
          h.value = 100
        }
      } else if (this.value == 'content') {
        w.value = 'fit'
        h.value = 'fit'
        changeCanvasSize();
        var res = svgCanvas.getResolution()
        w.value = res.w
        h.value = res.h

      } else {
        var dims = this.value.split('x');
        dims[0] = parseInt(dims[0]);
        dims[1] = parseInt(dims[1]);
        var diff_w = dims[0] - w.value;
        var diff_h = dims[1] - h.value;
        //animate
        var start = Date.now();
        var duration = 1000;
        var animateCanvasSize = function (timestamp) {
          var progress = Date.now() - start;
          var tick = progress / duration;
          tick = (Math.pow((tick - 1), 3) + 1);
          w.value = (dims[0] - diff_w + (tick * diff_w)).toFixed(0);
          h.value = (dims[1] - diff_h + (tick * diff_h)).toFixed(0);
          changeCanvasSize();
          if (tick >= 1) {
            var res = svgCanvas.getResolution()
            $('#canvas_width').val(res.w.toFixed())
            $('#canvas_height').val(res.h.toFixed())
            $('#resolution_label').html("<div class='pull'>" + res.w + "<span>×</span></br>" + res.h + "</div>");
          }
          else {
            requestAnimationFrame(animateCanvasSize)
          }
        }
        animateCanvasSize()

      }
    });

    $('#zoom').change(function () {
      changeZoom(this)
    })

    //Prevent browser from erroneously repopulating fields
    $('input,select').attr("autocomplete", "off");

    // Associate all button actions as well as non-button keyboard shortcuts
    var Actions = function () {
      // sel:'selector', fn:function, evt:'event', key:[key, preventDefault, NoDisableInInput]
      var tool_buttons = [
        { sel: '#tool_select', fn: clickSelect, evt: 'click', key: ['V', true] },
        { sel: '#tool_fhpath', fn: clickFHPath, evt: 'click', key: ['Q', true] },
        { sel: '#tool_line', fn: clickLine, evt: 'click', key: ['L', true] },
        { sel: '#tool_rect', fn: clickRect, evt: 'click', key: ['R', true] },
        { sel: '#tool_ellipse', fn: clickEllipse, evt: 'mouseup', key: ['C', true] },
        { sel: '#tool_eyedropper', fn: clickEyedropper, evt: 'click', key: ['I', true] },
        { sel: '#tool_shapelib', fn: clickShapelib, evt: 'click', key: ['S', true] },
        { sel: '#tool_path', fn: clickPath, evt: 'click', key: ['P', true] },
        { sel: '#tool_text', fn: clickText, evt: 'click', key: ['T', true] },
        { sel: '#tool_zoom', fn: clickZoom, evt: 'mouseup', key: ['Z', true] },
        { sel: '#tool_clear', fn: clickClear, evt: 'mouseup', key: [modKey + 'N', true] },
        //shuaihu
        //{ sel: '#tool_save', fn: function () { editingsource ? saveSourceEditor() : clickSave() }, evt: 'mouseup', key: [modKey + 'S', true] },
        { sel: '#tool_export', fn: clickExport, evt: 'mouseup' },
        { sel: '#tool_open', fn: clickOpen, evt: 'mouseup' },
        { sel: '#tool_import', fn: clickImport, evt: 'mouseup' },
        { sel: '#tool_source', fn: showSourceEditor, evt: 'click', key: [modKey + 'U', true] },
        { sel: '#tool_wireframe', fn: clickWireframe, evt: 'click' },
        { sel: '#tool_snap', fn: clickSnapGrid, evt: 'click' },
        { sel: '#tool_rulers', fn: clickRulers, evt: 'click' },
        { sel: '#tool_source_cancel,#svg_source_overlay,#tool_docprops_cancel,#tool_prefs_cancel', fn: cancelOverlays, evt: 'click', key: ['esc', false, false], hidekey: true },
        { sel: '#tool_source_save', fn: saveSourceEditor, evt: 'click' },
        { sel: '#tool_delete,#tool_delete_multi', fn: deleteSelected, evt: 'click', key: ['del/backspace', true] },
        { sel: '#tool_reorient', fn: reorientPath, evt: 'click' },
        { sel: '#tool_node_link', fn: linkControlPoints, evt: 'change' },
        { sel: '#tool_node_clone', fn: clonePathNode, evt: 'click' },
        { sel: '#tool_node_delete', fn: deletePathNode, evt: 'click' },
        { sel: '#tool_openclose_path', fn: opencloseSubPath, evt: 'click' },
        { sel: '#tool_add_subpath', fn: addSubPath, evt: 'click' },
        { sel: '#tool_move_top', fn: moveToTopSelected, evt: 'click', key: modKey + 'shift+up' },
        { sel: '#tool_move_bottom', fn: moveToBottomSelected, evt: 'click', key: modKey + 'shift+down' },
        { sel: '#tool_move_up', fn: moveUpSelected, evt: 'click', key: [modKey + 'up', true] },
        { sel: '#tool_move_down', fn: moveDownSelected, evt: 'click', key: [modKey + 'down', true] },
        { sel: '#tool_topath', fn: convertToPath, evt: 'click' },
        { sel: '#tool_make_link,#tool_make_link_multi', fn: makeHyperlink, evt: 'click' },
        { sel: '#tool_clone,#tool_clone_multi', fn: clickClone, evt: 'click', key: [modKey + 'D', true] },
        { sel: '#tool_group', fn: clickGroup, evt: 'click', key: [modKey + 'G', true] },
        { sel: '#tool_ungroup', fn: clickGroup, evt: 'click', key: modKey + 'shift+G' },
        { sel: '#tool_unlink_use', fn: clickGroup, evt: 'click' },
        { sel: '[id^=tool_align]', fn: clickAlign, evt: 'click' },
        //shuaihu
        // { sel: '#tool_undo', fn: clickUndo, evt: 'click', key: modKey + 'z' },
        // { sel: '#tool_redo', fn: clickRedo, evt: 'click', key: modKey + 'y' },
        { sel: '#tool_cut', fn: cutSelected, evt: 'click', key: [modKey + 'x', true] },
        { sel: '#tool_copy', fn: copySelected, evt: 'click', key: modKey + 'c' },
        { sel: '#tool_paste', fn: pasteSelected, evt: 'click', key: modKey + 'v' },
        { sel: '#tool_switch', fn: clickSwitch, evt: 'click', key: ['x', true] },
        { sel: '#tool_bold', fn: clickBold, evt: 'mousedown', key: [modKey + 'B', true] },
        { sel: '#tool_italic', fn: clickItalic, evt: 'mousedown', key: [modKey + 'I', true] },
        //{sel:'#sidepanel_handle', fn: toggleSidePanel, key: ['X']},
        { sel: '#copy_save_done', fn: cancelOverlays, evt: 'click' },

        // Shortcuts not associated with buttons

        { key: 'ctrl+left', fn: function () { rotateSelected(0, 1) } },
        { key: 'ctrl+right', fn: function () { rotateSelected(1, 1) } },
        { key: 'ctrl+shift+left', fn: function () { rotateSelected(0, 5) } },
        { key: 'ctrl+shift+right', fn: function () { rotateSelected(1, 5) } },
        { key: 'shift+O', fn: selectPrev },
        { key: 'shift+P', fn: selectNext },
        { key: [modKey + '+', true], fn: function () { zoomImage(2); } },
        { key: [modKey + '-', true], fn: function () { zoomImage(.5); } },
        { key: ['up', true], fn: function () { moveSelected(0, -1); } },
        { key: ['down', true], fn: function () { moveSelected(0, 1); } },
        { key: ['left', true], fn: function () { moveSelected(-1, 0); } },
        { key: ['right', true], fn: function () { moveSelected(1, 0); } },
        { key: 'shift+up', fn: function () { moveSelected(0, -10) } },
        { key: 'shift+down', fn: function () { moveSelected(0, 10) } },
        { key: 'shift+left', fn: function () { moveSelected(-10, 0) } },
        { key: 'shift+right', fn: function () { moveSelected(10, 0) } },
        { key: ['alt+up', true], fn: function () { svgCanvas.cloneSelectedElements(0, -1) } },
        { key: ['alt+down', true], fn: function () { svgCanvas.cloneSelectedElements(0, 1) } },
        { key: ['alt+left', true], fn: function () { svgCanvas.cloneSelectedElements(-1, 0) } },
        { key: ['alt+right', true], fn: function () { svgCanvas.cloneSelectedElements(1, 0) } },
        { key: ['alt+shift+up', true], fn: function () { svgCanvas.cloneSelectedElements(0, -10) } },
        { key: ['alt+shift+down', true], fn: function () { svgCanvas.cloneSelectedElements(0, 10) } },
        { key: ['alt+shift+left', true], fn: function () { svgCanvas.cloneSelectedElements(-10, 0) } },
        { key: ['alt+shift+right', true], fn: function () { svgCanvas.cloneSelectedElements(10, 0) } },
        { key: 'ctrl+shift+E', fn: function () { convertToPath() } },
        { key: modKey + 'A', fn: function () { svgCanvas.selectAllInCurrentLayer(); } },

        // Standard shortcuts
        //shuaihu
        // { key: modKey + 'shift+z', fn: clickRedo },
        { key: 'esc', fn: minimizeModal }
      ];

      // Tooltips not directly associated with a single function
      var key_assocs = {
        '4/Shift+4': '#tools_rect_show',
        '5/Shift+5': '#tools_ellipse_show'
      };

      return {
        setAll: function () {
          var flyouts = {};

          $.each(tool_buttons, function (i, opts) {
            // Bind function to button
            if (opts.sel) {
              var btn = $(opts.sel);
              if (btn.length == 0) return true; // Skip if markup does not exist
              if (opts.evt) {
                if (svgedit.browser.isTouch() && opts.evt === "click") opts.evt = "mousedown"
                btn[opts.evt](opts.fn);
              }

              // Add to parent flyout menu, if able to be displayed
              if (opts.parent && $(opts.parent + '_show').length != 0) {
                var f_h = $(opts.parent);
                if (!f_h.length) {
                  f_h = makeFlyoutHolder(opts.parent.substr(1));
                }

                f_h.append(btn);

                if (!$.isArray(flyouts[opts.parent])) {
                  flyouts[opts.parent] = [];
                }
                flyouts[opts.parent].push(opts);
              }
            }


            // Bind function to shortcut key
            if (opts.key) {
              // Set shortcut based on options
              var keyval, shortcut = '', disInInp = true, fn = opts.fn, pd = false;
              if ($.isArray(opts.key)) {
                keyval = opts.key[0];
                if (opts.key.length > 1) pd = opts.key[1];
                if (opts.key.length > 2) disInInp = opts.key[2];
              } else {
                keyval = opts.key;
              }
              keyval += '';
              if (svgedit.browser.isMac && keyval.indexOf("+") != -1) {
                var modifier_key = keyval.split("+")[0];
                if (modifier_key == "ctrl") keyval.replace("ctrl", "cmd")
              }

              $.each(keyval.split('/'), function (i, key) {
                $(document).bind('keydown', key, function (e) {
                  fn();
                  if (pd) {
                    e.preventDefault();
                  }
                  // Prevent default on ALL keys?
                  return false;
                });
              });

              // Put shortcut in title
              if (opts.sel && !opts.hidekey && btn.attr('title')) {
                var new_title = btn.attr('title').split('[')[0] + ' (' + keyval + ')';
                key_assocs[keyval] = opts.sel;
                // Disregard for menu items
                if (!btn.parents('#main_menu').length) {
                  btn.attr('title', new_title);
                }
              }
            }
          });

          $(window).bind('keydown', 'tab', function (e) {
            if (ui_context === 'canvas') {
              e.preventDefault();
              selectNext();
            }
          }).bind('keydown', 'shift+tab', function (e) {
            if (ui_context === 'canvas') {
              e.preventDefault();
              selectPrev();
            }
          });
        },
        setTitles: function () {
          $.each(key_assocs, function (keyval, sel) {
            var menu = ($(sel).parents('#main_menu').length);

            $(sel).each(function () {
              if (menu) {
                var t = $(this).text().split(' [')[0];
              } else {
                var t = this.title.split(' [')[0];
              }
              var key_str = '';
              // Shift+Up
              $.each(keyval.split('/'), function (i, key) {
                var mod_bits = key.split('+'), mod = '';
                if (mod_bits.length > 1) {
                  mod = mod_bits[0] + '+';
                  key = mod_bits[1];
                }
                key_str += (i ? '/' : '') + mod + (key);
              });
              if (menu) {
                this.lastChild.textContent = t + ' [' + key_str + ']';
              } else {
                this.title = t + ' [' + key_str + ']';
              }
            });
          });
        },
        getButtonData: function (sel) {
          var b;
          $.each(tool_buttons, function (i, btn) {
            if (btn.sel === sel) b = btn;
          });
          return b;
        }
      };
    }();

    Actions.setAll();

    // Select given tool
    Editor.ready(function () {
      var tool,
        itool = curConfig.initTool,
        container = $("#tools_left, #svg_editor .tools_flyout"),
        pre_tool = container.find("#tool_" + itool),
        reg_tool = container.find("#" + itool);
      if (pre_tool.length) {
        tool = pre_tool;
      } else if (reg_tool.length) {
        tool = reg_tool;
      } else {
        tool = $("#tool_select");
      }
      tool.click().mouseup();

      if (curConfig.wireframe) {
        $('#tool_wireframe').click();
      }

      if (curConfig.showlayers) {
        toggleSidePanel();
      }

      $('#rulers').toggle(!!curConfig.showRulers);
    });

    $('#_stroke_style').bind("dblclick", function (e) {
      this.removeAttribute("readonly", "readonly");
      this.focus();
      this.select();
    })
      .blur(function (e) {
        this.setAttribute("readonly", "readonly")
      });
    $("td textarea")
      .on("blur", function () {
        $('#plc_bind_lable').hide();
        $(this).removeClass('plc_bind_editing');
      })
      .on("dblclick", function () {
        $('#plc_bind_lable').show();
        $('#plc_bind_lable').html(`<h4>${this.ariaLabel}</h4>`)
        this.selectionStart = this.selectionEnd;
        $(this).addClass('plc_bind_editing')
      })
      .keydown(function (e) {
        if (e.code === 'Tab' && this.width > 300) {
          let start = this.selectionStart;
          let s = this.value;
          s = s.substring(0, start) + s.substring(this.selectionEnd);
          this.value = s.substring(0, start) + "    " + s.substring(start);
          this.selectionStart = start + 4;
          this.selectionEnd = start + 4;
          e.preventDefault();
        } else if (e.code === "Enter" && e.ctrlKey) {
          this.selectionStart = 0;
          this.selectionEnd = 0;
          this.blur();
        } else if (e.code === 'Enter' && this.clientWidth < 200) {
          this.selectionStart = 0;
          this.selectionEnd = 0;
          this.blur();
        } else if (e.code === 'Escape') {
          this.selectionStart = 0;
          this.selectionEnd = 0;
          this.blur();
        }
      })
      .on("focus", function () {
        this.selectionStart = 0;
        this.selectionEnd = this.value.length;
      }).on("change", function (e) {
        this.value = this.value.replace(/\n*$/, "");
        changePlcBind(this);
      });
    changePlcBind = function (el) {
      var attr = el.getAttribute("data-attr");
      let subattr = el.getAttribute('data-subattr')
      svgCanvas.changeSlectedPlcBind(attr, subattr, el.value);
    };

    $("td select").append("<option value=''>选择标记名</option>");

    $("td select").on("change", function () {
      $(this).next().val(this.value);
      $(this).next().trigger("change");
    }).attr("tabIndex", "-1");

    //shuaihu
    //$("#animator_editor").animationEditor({operate:'new',svgEl:window});

    $('#canvas_height').dragInput({ min: 10, max: null, step: 10, callback: changeCanvasSize, cursor: false, dragAdjust: .1 });
    $('#canvas_width').dragInput({ min: 10, max: null, step: 10, callback: changeCanvasSize, cursor: false, dragAdjust: .1 });
    $('#rect_width').dragInput({ min: 1, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#rect_height').dragInput({ min: 1, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#ellipse_cx').dragInput({ min: 1, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#ellipse_cy').dragInput({ min: 1, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#ellipse_rx').dragInput({ min: 1, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#ellipse_ry').dragInput({ min: 1, max: null, step: 1, callback: changeAttribute, cursor: false });
    $("#image_height").dragInput({ min: 1, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#circle_cx').dragInput({ min: 1, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#circle_cy').dragInput({ min: 1, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#circle_r').dragInput({ min: 1, max: null, step: 1, callback: changeAttribute, cursor: false });
    $("#image_height").dragInput({ min: 0, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#selected_x').dragInput({ min: null, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#selected_y').dragInput({ min: null, max: null, step: 1, callback: changeAttribute, cursor: false });
    $("#path_node_x").dragInput({ min: null, max: null, step: 1, callback: changeAttribute, cursor: false });
    $("#path_node_y").dragInput({ min: null, max: null, step: 1, callback: changeAttribute, cursor: false });
    $("#image_width").dragInput({ min: null, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#line_x1').dragInput({ min: null, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#line_x2').dragInput({ min: null, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#line_y1').dragInput({ min: null, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#line_y2').dragInput({ min: null, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#path_x').dragInput({ min: null, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#path_y').dragInput({ min: null, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#rect_x').dragInput({ min: null, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#rect_y').dragInput({ min: null, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#g_x').dragInput({ min: null, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#g_y').dragInput({ min: null, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#image_x').dragInput({ min: null, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#text_y').dragInput({ min: null, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#text_x').dragInput({ min: null, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#image_y').dragInput({ min: null, max: null, step: 1, callback: changeAttribute, cursor: false });
    $('#rect_rx').dragInput({ min: 0, max: 100, step: 1, callback: changeAttribute, cursor: true });
    $('#stroke_width').dragInput({ min: 0, max: 99, step: 1, callback: changeStrokeWidth, cursor: true, smallStep: 0.1, start: 1.5 });
    $('#angle').dragInput({ min: -180, max: 180, step: 1, callback: changeRotationAngle, cursor: false, dragAdjust: 0.5 });
    $('#font_size').dragInput({ min: 1, max: 250, step: 1, callback: changeFontSize, cursor: true, stepfunc: stepFontSize, dragAdjust: .15 });
    $('#group_opacity').dragInput({ min: 0, max: 100, step: 5, callback: changeAttribute, cursor: true, start: 100 });
    $('#blur').dragInput({ min: 0, max: 10, step: .1, callback: changeBlur, cursor: true, start: 0 });
    // Set default zoom 
    $('#zoom').val(svgCanvas.getZoom() * 100);

    $("#workarea").contextMenu({
      menu: 'cmenu_canvas',
      inSpeed: 0
    },
      function (action, el, pos) {
        switch (action) {
          case 'delete':
            deleteSelected();
            break;
          case 'cut':
            cutSelected();
            break;
          case 'copy':
            copySelected();
            break;
          case 'paste':
            svgCanvas.pasteElements();
            break;
          case 'paste_in_place':
            svgCanvas.pasteElements('in_place');
            break;
          case 'group':
            svgCanvas.groupSelectedElements();
            break;
          case 'ungroup':
            svgCanvas.ungroupSelectedElement();
            break;
          case 'move_front':
            moveToTopSelected();
            break;
          case 'move_up':
            moveUpDownSelected('Up');
            break;
          case 'move_down':
            moveUpDownSelected('Down');
            break;
          case 'move_back':
            moveToBottomSelected();
            break;
          case 'topath':
            convertToPath();
            break;
          case 'import':
            if (vscode) {
              vscode.postMessage({ type: 'importImage' });
            }
            break;
          default:
            if (svgedit.contextmenu && svgedit.contextmenu.hasCustomHandler(action)) {
              svgedit.contextmenu.getCustomHandler(action).call();
            }
            break;
        }

      });

    $('.contextMenu li').mousedown(function (ev) {
      ev.preventDefault();
    })

    $('#cmenu_canvas li').disableContextMenu();
    canv_menu.enableContextMenuItems('#delete,#cut,#copy,#import');

    Editor.openPrep = function (func) {
      $('#main_menu').hide();
      if (undoMgr.getUndoStackSize() === 0) {
        func(true);
      } else {
        $.confirm("Do you want to open a new file?\nThis will also erase your undo history", func);
      }
    }

    if (window.FileReader) {

      if (vscode) {
        var import_image = function (e) {
          $("#workarea").removeAttr("style");
          if (e.filetype.indexOf("svg") != -1) {
            svgCanvas.importSvgString(e.content, true);
            svgCanvas.ungroupSelectedElement()
            svgCanvas.ungroupSelectedElement()
            svgCanvas.groupSelectedElements()
            svgCanvas.alignSelectedElements("m", "page")
            svgCanvas.alignSelectedElements("c", "page")
          } else {
            insertNewImage = function (img_width, img_height) {
              var newImage = svgCanvas.addSvgElementFromJson({
                "element": "image",
                "attr": {
                  "x": 0,
                  "y": 0,
                  "width": img_width,
                  "height": img_height,
                  "id": svgCanvas.getNextId(),
                  "style": "pointer-events:inherit"
                }
              });
              svgCanvas.setHref(newImage, e.content);
              svgCanvas.selectOnly([newImage])
              svgCanvas.alignSelectedElements("m", "page")
              svgCanvas.alignSelectedElements("c", "page")
              updateContextPanel();
            }
            // put a placeholder img so we know the default dimensions
            var img_width = 100;
            var img_height = 100;
            var img = new Image()
            img.src = e.content;
            document.body.appendChild(img);
            img.onload = function () {
              img_width = img.offsetWidth
              img_height = img.offsetHeight
              insertNewImage(img_width, img_height);
              document.body.removeChild(img);
            }
          }
        }
      } else {
        var import_image = function (e) {
          e.stopPropagation();
          e.preventDefault();
          $("#workarea").removeAttr("style");
          $('#main_menu').hide();
          var file = null;
          if (e.type == "drop") file = e.dataTransfer.files[0]
          else file = this.files[0];
          if (file) {
            if (file.type.indexOf("image") != -1) {
              //detected an image

              //svg handing
              if (file.type.indexOf("svg") != -1) {
                var reader = new FileReader();
                reader.onloadend = function (e) {
                  svgCanvas.importSvgString(e.target.result, true);
                  svgCanvas.ungroupSelectedElement()
                  svgCanvas.ungroupSelectedElement()
                  svgCanvas.groupSelectedElements()
                  svgCanvas.alignSelectedElements("m", "page")
                  svgCanvas.alignSelectedElements("c", "page")
                };
                reader.readAsText(file);
              }

              //image handling
              else {
                var reader = new FileReader();
                reader.onloadend = function (e) {
                  // lets insert the new image until we know its dimensions
                  insertNewImage = function (img_width, img_height) {
                    var newImage = svgCanvas.addSvgElementFromJson({
                      "element": "image",
                      "attr": {
                        "x": 0,
                        "y": 0,
                        "width": img_width,
                        "height": img_height,
                        "id": svgCanvas.getNextId(),
                        "style": "pointer-events:inherit"
                      }
                    });
                    svgCanvas.setHref(newImage, e.target.result);
                    svgCanvas.selectOnly([newImage])
                    svgCanvas.alignSelectedElements("m", "page")
                    svgCanvas.alignSelectedElements("c", "page")
                    updateContextPanel();
                  }
                  // put a placeholder img so we know the default dimensions
                  var img_width = 100;
                  var img_height = 100;
                  var img = new Image()
                  img.src = e.target.result
                  document.body.appendChild(img);
                  img.onload = function () {
                    img_width = img.offsetWidth
                    img_height = img.offsetHeight
                    insertNewImage(img_width, img_height);
                    document.body.removeChild(img);
                  }
                };
                reader.readAsDataURL(file)
              }
            }
          }
        }
      }

      var workarea = $("#workarea")

      function onDragEnter(e) {
        e.stopPropagation();
        e.preventDefault();
        workarea.css({
          "-webkit-transform": "scale3d(1.1,1.1,1)",
          "-moz-transform": "scale3d(1.1,1.1,1)",
          "-o-transform": "scale(1.1)",
          "-ms-transform": "scale3d(1.1,1.1,1)",
          "transform": "scale3d(1.1,1.1,1)"
        })

      }

      function onDragOver(e) {
        e.stopPropagation();
        e.preventDefault();
      }

      function onDragLeave(e) {
        workarea.removeAttr("style")
        e.stopPropagation();
        e.preventDefault();
      }

      workarea[0].addEventListener('dragenter', onDragEnter, false);
      workarea[0].addEventListener('dragover', onDragOver, false);
      workarea[0].addEventListener('dragleave', onDragLeave, false);
      workarea[0].addEventListener('drop', import_image, false);

      var open = $('<input type="file">').change(function () {
        var f = this;
        Editor.openPrep(function (ok) {
          if (!ok) return;
          svgCanvas.clear();
          if (f.files.length == 1) {
            var reader = new FileReader();
            reader.onloadend = function (e) {
              loadSvgString(e.target.result);
              updateCanvas();
            };
            reader.readAsText(f.files[0]);
          }
        });
      });
      $("#tool_open").show().prepend(open);

      var img_import = [$('<input type="file">').change(import_image), $('<input type="file">').change(import_image)];
      let idx = 0;
      $("#tool_import").show().prepend(img_import[0]);
      $('#tool_import_li').prepend(img_import[1]);
    }


    var updateCanvas = Editor.updateCanvas = function (center, new_ctr) {
      var w = workarea.width(), h = workarea.height();
      var w_orig = w, h_orig = h;
      var zoom = svgCanvas.getZoom();
      var w_area = workarea;
      var cnvs = $("#svgcanvas");

      var old_ctr = {
        x: w_area[0].scrollLeft + w_orig / 2,
        y: w_area[0].scrollTop + h_orig / 2
      };

      var multi = curConfig.canvas_expansion;
      w = Math.max(w_orig, svgCanvas.contentW * zoom * multi);
      h = Math.max(h_orig, svgCanvas.contentH * zoom * multi);

      if (w == w_orig && h == h_orig) {
        workarea.css('overflow', 'hidden');
      } else {
        workarea.css('overflow', 'scroll');
      }

      var old_can_y = cnvs.height() / 2;
      var old_can_x = cnvs.width() / 2;
      cnvs.width(w).height(h);
      var new_can_y = h / 2;
      var new_can_x = w / 2;
      var offset = svgCanvas.updateCanvas(w, h);

      var ratio = new_can_x / old_can_x;

      var scroll_x = w / 2 - w_orig / 2;
      var scroll_y = h / 2 - h_orig / 2;

      if (!new_ctr) {

        var old_dist_x = old_ctr.x - old_can_x;
        var new_x = new_can_x + old_dist_x * ratio;

        var old_dist_y = old_ctr.y - old_can_y;
        var new_y = new_can_y + old_dist_y * ratio;

        new_ctr = {
          x: new_x,
          y: new_y
        };

      } else {
        new_ctr.x += offset.x,
          new_ctr.y += offset.y;
      }

      //width.val(offset.x)
      //height.val(offset.y)

      if (center) {
        // Go to top-left for larger documents
        if (svgCanvas.contentW > w_area.width()) {
          // Top-left
          workarea[0].scrollLeft = offset.x - 10;
          workarea[0].scrollTop = offset.y - 10;
        } else {
          // Center
          w_area[0].scrollLeft = scroll_x;
          w_area[0].scrollTop = scroll_y;
        }
      } else {
        w_area[0].scrollLeft = new_ctr.x - w_orig / 2;
        w_area[0].scrollTop = new_ctr.y - h_orig / 2;
      }
      if (curConfig.showRulers) {
        updateRulers(svgCanvas, cnvs, zoom);
        workarea.scroll();
      }
    }


    updateCanvas(true);

    // Callback handler for embedapi.js
    try {
      var json_encode = function (obj) {
        //simple partial JSON encoder implementation
        if (window.JSON && JSON.stringify) return JSON.stringify(obj);
        var enc = arguments.callee; //for purposes of recursion
        if (typeof obj == "boolean" || typeof obj == "number") {
          return obj + '' //should work...
        } else if (typeof obj == "string") {
          //a large portion of this is stolen from Douglas Crockford's json2.js
          return '"' +
            obj.replace(
              /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g
              , function (a) {
                return '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
              })
            + '"'; //note that this isn't quite as purtyful as the usualness
        } else if (obj.length) { //simple hackish test for arrayish-ness
          for (var i = 0; i < obj.length; i++) {
            obj[i] = enc(obj[i]); //encode every sub-thingy on top
          }
          return "[" + obj.join(",") + "]";
        } else {
          var pairs = []; //pairs will be stored here
          for (var k in obj) { //loop through thingys
            pairs.push(enc(k) + ":" + enc(obj[k])); //key: value
          }
          return "{" + pairs.join(",") + "}" //wrap in the braces
        }
      }
      window.addEventListener("message", function (e) {
        let msg = e.data;
        switch (e.data.type) {
          case "update":
            opened = false;
            setTimeout(() => {
              svgCanvas.clear();
              loadSvgString(msg.body.content);
              updateCanvas();
              svgCanvas.undoMgr.resetUndoStack();
              if (msg.body.context) {
                svgCanvas.setContext(msg.body.context);
              }
              setTimeout(() => {
                opened = true;
              }, 100);
            }, 50);

            break;
          case "getFileData": {
            //svgCanvas.clearSelection();
            let content = svgCanvas.getSvgString({ images: undefined, round_digits: 6, apply: true });
            vscode.postMessage({ type: "response", requestId: msg.requestId, body: content });
          }
            break;
          case "importImage":
            import_image(msg.body);
            break;
          case "plcTags": {
            let tags = msg.plcTags;
            tags.forEach(v => {
              let opt = $(`<option value='plc.${v}'>plc.${v}</option>`);
              $("#plc_bind td select").each(function () {
                $(this).append(opt.clone());
              });
              $('#bind_plc').append(opt);
            })
          }
            break;
        }
      }, false);
    } catch (err) {
      window.embed_error = err;
    }



    // For Compatibility with older extensions
    $(function () {
      window.svgCanvas = svgCanvas;
      svgCanvas.ready = methodDraw.ready;
    });


    Editor.setLang = function (lang, allStrings) {
      $.pref('lang', lang);
      $('#lang_select').val(lang);
      if (allStrings) {

        var notif = allStrings.notification;

        svgCanvas.runExtensions("langChanged", lang);

        // Update flyout tooltips
        setFlyoutTitles();

        // Copy title for certain tool elements
        var elems = {
          '#stroke_color': '#tool_stroke .icon_label, #tool_stroke .color_block',
          '#fill_color': '#tool_fill label, #tool_fill .color_block',
          '#linejoin_miter': '#cur_linejoin',
          '#linecap_butt': '#cur_linecap'
        }

        $.each(elems, function (source, dest) {
          $(dest).attr('title', $(source)[0].title);
        });

        // Copy alignment titles
        $('#multiselected_panel div[id^=tool_align]').each(function () {
          $('#tool_pos' + this.id.substr(10))[0].title = this.title;
        });

      }
    };
  };

  var callbacks = [];

  function loadSvgString(str, callback) {
    var success = svgCanvas.setSvgString(str) !== false;
    callback = callback || $.noop;
    if (success) {
      callback(true);
    } else {
      $.alert("Error: Unable to load SVG data", function () {
        callback(false);
      });
    }
  }

  Editor.ready = function (cb) {
    if (!is_ready) {
      callbacks.push(cb);
    } else {
      cb();
    }
  };

  Editor.runCallbacks = function () {
    $.each(callbacks, function () {
      this();
    });
    is_ready = true;
  };

  Editor.loadFromString = function (str) {
    Editor.ready(function () {
      loadSvgString(str);
    });
  };

  Editor.loadFromURL = function (url, opts) {
    if (!opts) opts = {};

    var cache = opts.cache;
    var cb = opts.callback;

    Editor.ready(function () {
      $.ajax({
        'url': url,
        'dataType': 'text',
        cache: !!cache,
        success: function (str) {
          loadSvgString(str, cb);
        },
        error: function (xhr, stat, err) {
          if (xhr.status != 404 && xhr.responseText) {
            loadSvgString(xhr.responseText, cb);
          } else {
            $.alert("Unable to load from URL" + ": \n" + err + '', cb);
          }
        }
      });
    });
  };

  Editor.loadFromDataURI = function (str) {
    Editor.ready(function () {
      var pre = 'data:image/svg+xml;base64,';
      var src = str.substring(pre.length);
      loadSvgString(svgedit.utilities.decode64(src));
    });
  };

  Editor.addExtension = function () {
    var args = arguments;

    // Note that we don't want this on Editor.ready since some extensions
    // may want to run before then (like server_opensave).
    $(function () {
      if (svgCanvas) svgCanvas.addExtension.apply(this, args);
    });
  };

  $('#animation_panel').children("button").each(function () {
    $(this).on("click", function () {
      let el = $("#animation_panel").prop("svgEl")
      let $select = $("#animation_panel").children("#animation_select");
      switch (this.name) {
        case "append":
          $("#animator_editor").animationEditor({
            operate: "new",
            svgEl: el,
            selectPath: function () {
              getPathing = true;
            },
            after: function (name) {
              $select.append(`<option value='${name}'>${name}</option>`);
              $select.val(name);
              $select.trigger("change");
              svgCanvas.call("changed", el);
            }
          })
          break;
        case "play": {
          $this = $(this);
          if (!$select.val()) {
            $this.text("播放");
            el.style.animationPlayState = "running";
            $(el).removeClass();
            return;
          }
          if ($this.text() === "播放") {
            el.style.animationPlayState = "running";
            if (el.getAttribute("class")) {
              $(this).text("暂停")
            } else {
              $(el).removeClass();
              let cls = $("#animation_panel").children("select").val();
              cls = el.id + cls;
              $(el).addClass(cls);
              $(this).text("暂停")
            }
          } else {
            el.style.animationPlayState = "paused";
            $(this).text("播放")
          }
          svgCanvas.call("changed", el);
        }
          break;
        case "stop":
          {
            $(el).removeClass();
            $('#animation_panel').children("button[name='play']").text("播放");
            el.style.animationPlayState = "";
            svgCanvas.call("changed", el);
          }
          break;
        case "remove":
          {
            $(el).removeClass();
            let name = $select.val();


            if (!name) return;

            let $el = $(el);
            let s = $el.attr("plc_animation");
            if (s && s.length > 4) {
              let obj = JSON.parse(atob(s.slice(2, -2)));
              delete obj[el.id + name];
              $el.attr("plc_animation", `@(${btoa(JSON.stringify(obj))})@`);
            }
            $(el).removeAnimation(name);
            svgCanvas.call("changed", el);
            $select.children().each(function () {
              let $this = $(this);
              if ($this.val() == name) {
                $this.remove();
              }
            })
            $select.val("");
            $(this).siblings("[name='play']").text("播放");
          }
          break;
        case "change":
          {
            if (!$select.val()) return;
            $("#animator_editor").animationEditor({
              operate: "change",
              name: $select.val(),
              svgEl: el,
              selectPath: function () {
                getPathing = true;
              },
              after: function (name) {
                svgCanvas.call("changed", el);
              }
            })
          }
          break;
      }
    })
  })
  $('#animation_panel').children("#animation_select").on("change", function () {
    let play = ['play', 'pause', 'stop', 'change']
    let value = this.value;
    let disable = !value;

    $('#animation_panel').children("button").each(function () {
      if (play.includes($(this).attr('name'))) {
        $(this).prop("disabled", disable);
      }
    })
    let $el = $($("#animation_panel").prop("svgEl"));
    let bindplc = $('#animation_panel').children("#bind_plc");
    let s = $el.attr("plc_animation");
    if (value) {
      if (s && s.length > 4) {
        let obj = JSON.parse(atob(s.slice(2, -2)));
        let plcp = obj[$el.prop('id') + value];
        bindplc.val(plcp);
      } else {
        bindplc.val("");
      }
      bindplc.removeAttr("disabled");
    } else {
      bindplc.val("");
      bindplc.attr("disabled", "disabled");
    }
  })
  $('#animation_panel').children("#animation_select").trigger("change");
  $('#animation_panel').children("#bind_plc").on("change", function () {
    let $el = $($("#animation_panel").prop("svgEl"));
    let animationName = $('#animation_panel').children("#animation_select").val();
    let $this = $(this);
    if (!$this.val() || !animationName) return;
    animationName = $el.prop("id") + animationName;
    let s = $el.attr("plc_animation");
    let obj = {};
    if (s && s.length > 4) {
      obj = JSON.parse(atob(s.slice(2, -2)));
    }
    obj[animationName] = $this.val();
    $el.attr("plc_animation", `@(${btoa(JSON.stringify(obj))})@`);
    svgCanvas.call("changed", $el[0]);
  })
  return Editor;
}(jQuery);

// Run init once DOM is loaded
$(methodDraw.init);

